650WHP 2018 Audi S5 Oil Recommendation?

Cujet said:
For an engine that is producing about 110HP per cylinder, (HP/Cyl is a different and solid way of looking at an engine's load, which is what matters), oil must have adequate viscosity and high HTHS to carry the rod bearing and piston pin loads. Since many of the choices will shear, it's often best to choose an oil based on quality and high HTHS.

Let's keep in mind that most automotive engines have rod bearing sizes that are not all that far apart from each other. Sure, there are differences, but for the most part, one automotive engine won't have a 27mm rod bearing and another an absurdly large 80mm rod bearing.

The idea that some of these lower viscosity oils can provide adequate MOFT under extreme loads is generally not correct. Especially if oil temps and pressures are not actively managed.

80HP per cylinder is where 5W-40/HTHS above 3.5 and ideally 3.8 is required.
110HP per cyl really does require an HTHS pushing 5.0 and at least a 15W-50 synthetic.

Been there, done that, for 40+ years.

There is a reason I go right for M1, 15W-50 in my turbocharged builds. Take a minute and let the engine warm up with higher viscosity oils. Other than that, there is no downside.
Click to expand...
Curious why HP/cylinder vs say HP/liter?
 
Thanks to everyone for the responses and my apologies for taking so long to reply. I am overwhelmed by all of the oil options. Some people seem to be interested in the car so I have included a brief history of mods below and attached some hasty pictures. The car looks basically stock except that it is slightly lowered, has wider tires, 10mm wheels spacers, some turbo whistling under load, and maybe some exhaust burbles (depending on the drive mode settings)

I have owned the car since November 2020 when I bought it used with ~35k miles.

Almost exactly a year after buying the car I did the following:
  • 034 Motorsport Stage 1 91 Octane ECU tune and Stage 2 TCU Tune
    • 337 AWHP, 423 FT-LBS AWTQ
    • Calculated 397 HP, 491 FT-LBS Torque at the engine (66.1 HP/Cylinder)
  • Wagner intercooler with charge pipe kit
  • 034 P34 Air Intake
  • 034 Dynamic+ Lowering Springs
  • ECS Tuning Front Adjustable Sway Bar
  • 034 Dynamic+ Rear Adjustable Sway Bar
  • 034 Dynamic+ Billet Adjustable Sway Bar End Links
  • 034 Density Line Adjustable Upper Control Arm Kit (Track Spec)
  • 034 Density Line Adjustable Rear Toe Links
  • 034 Billet Aluminum Rear Subframe Mount Insert Kit
  • ECS Rear Differential and Transmission Mount Insert Kits
  • ECS Billet Front Strut Brace
  • 034 X-Clear Driveshaft Tunnel Brace
  • 265/40ZR18 Michelin Pilot Sport 4S Tires
Over the next year+, I started gathering the parts to go Stage 3 with 034 along with a brake system upgrade: The install happened in September 2023 when the car had 59k and it has 73k now ~14k miles
  • 034 Stage 3+ TTE8810 E60 High Output ECU Tune and Stage 3 TCU Tune
    • 648 AWHP, 615 FT-LBS AWTQ
    • Calculated 774 HP, 716 FT-LBS Torque at the engine (129 HP/Cylinder)
  • TTE810 Hybrid Turbocharger
  • RedStar Downpipe with High Flow GESI Gen2 UHOX 400cpsi 6" Catalyst with full heat shielding
  • OEM Audi RS5 Fuel Fuel Injectors
  • Fuel-It Ethanol Content Sensor
  • NGK Laser Iridium Spark Plugs
  • 034 High Pressure Fuel Pump Piston Upgrade Kit
  • 034 SuperDuper Turbo Inlet
  • 034 Stainless Steel Braided Brake Line Kit
  • Zimmerman Brake Rotors
  • G-Loc GS-1 Brake Pads
  • ATE Typ 200 Brake Fluid
  • 034 Bullet Nose Wheel Stud Conversion Kit
  • 034 10mm Wheel Spacers
  • 275/35ZR18 Continental ExtremeContact Sport 02 Tires
The car's cooling system has not been modified yet and includes, from the factory an oil cooler that is tied to the engine coolant and an auxiliary engine coolant radiator on the driver side of the front bumper.

The car does have an oil temperature display on the dash. Oil temperature seems to be a weak link for the car. When cruising, I see oil temps between 190 and 210 depending on ambient temperature and whether I have it in sport mode or not (where it holds a lower gear), but i usually only see 210 when climbing long hills. Oil temps quickly climb when getting on the power. The highest I have ever noticed was ~240 after doing back to back to back launches and 30-90mph pulls.

The car does consume some oil on the order of 1-2 quarts per 5000 mile OCI. I have never done a UOA.

I am leaning towards the cheaper oils:
  • M1 FS Euro 0W40
  • Castrol Edge Euro 5W40
  • Quaker State Euro FS 5W40
  • Maybe PP Euro 5W40
Do I really need something fancier than that? Would it be wise to top off the oil with M1 5w50 to help slightly with fuel dilution?

Does M1 make more than one 5w50? Searching on Walmart.com got me confused.

PXL_20250121_140556068.webp
 
redbeardmcgee said:
Thanks to everyone for the responses and my apologies for taking so long to reply. I am overwhelmed by all of the oil options. Some people seem to be interested in the car so I have included a brief history of mods below and attached some hasty pictures. The car looks basically stock except that it is slightly lowered, has wider tires, 10mm wheels spacers, some turbo whistling under load, and maybe some exhaust burbles (depending on the drive mode settings)

I have owned the car since November 2020 when I bought it used with ~35k miles.

Almost exactly a year after buying the car I did the following:
  • 034 Motorsport Stage 1 91 Octane ECU tune and Stage 2 TCU Tune
    • 337 AWHP, 423 FT-LBS AWTQ
    • Calculated 397 HP, 491 FT-LBS Torque at the engine (66.1 HP/Cylinder)
  • Wagner intercooler with charge pipe kit
  • 034 P34 Air Intake
  • 034 Dynamic+ Lowering Springs
  • ECS Tuning Front Adjustable Sway Bar
  • 034 Dynamic+ Rear Adjustable Sway Bar
  • 034 Dynamic+ Billet Adjustable Sway Bar End Links
  • 034 Density Line Adjustable Upper Control Arm Kit (Track Spec)
  • 034 Density Line Adjustable Rear Toe Links
  • 034 Billet Aluminum Rear Subframe Mount Insert Kit
  • ECS Rear Differential and Transmission Mount Insert Kits
  • ECS Billet Front Strut Brace
  • 034 X-Clear Driveshaft Tunnel Brace
  • 265/40ZR18 Michelin Pilot Sport 4S Tires
Over the next year+, I started gathering the parts to go Stage 3 with 034 along with a brake system upgrade: The install happened in September 2023 when the car had 59k and it has 73k now ~14k miles
  • 034 Stage 3+ TTE8810 E60 High Output ECU Tune and Stage 3 TCU Tune
    • 648 AWHP, 615 FT-LBS AWTQ
    • Calculated 774 HP, 716 FT-LBS Torque at the engine (129 HP/Cylinder)
  • TTE810 Hybrid Turbocharger
  • RedStar Downpipe with High Flow GESI Gen2 UHOX 400cpsi 6" Catalyst with full heat shielding
  • OEM Audi RS5 Fuel Fuel Injectors
  • Fuel-It Ethanol Content Sensor
  • NGK Laser Iridium Spark Plugs
  • 034 High Pressure Fuel Pump Piston Upgrade Kit
  • 034 SuperDuper Turbo Inlet
  • 034 Stainless Steel Braided Brake Line Kit
  • Zimmerman Brake Rotors
  • G-Loc GS-1 Brake Pads
  • ATE Typ 200 Brake Fluid
  • 034 Bullet Nose Wheel Stud Conversion Kit
  • 034 10mm Wheel Spacers
  • 275/35ZR18 Continental ExtremeContact Sport 02 Tires
The car's cooling system has not been modified yet and includes, from the factory an oil cooler that is tied to the engine coolant and an auxiliary engine coolant radiator on the driver side of the front bumper.

The car does have an oil temperature display on the dash. Oil temperature seems to be a weak link for the car. When cruising, I see oil temps between 190 and 210 depending on ambient temperature and whether I have it in sport mode or not (where it holds a lower gear), but i usually only see 210 when climbing long hills. Oil temps quickly climb when getting on the power. The highest I have ever noticed was ~240 after doing back to back to back launches and 30-90mph pulls.

The car does consume some oil on the order of 1-2 quarts per 5000 mile OCI. I have never done a UOA.

I am leaning towards the cheaper oils:
  • M1 FS Euro 0W40
  • Castrol Edge Euro 5W40
  • Quaker State Euro FS 5W40
  • Maybe PP Euro 5W40
Do I really need something fancier than that? Would it be wise to top off the oil with M1 5w50 to help slightly with fuel dilution?

Does M1 make more than one 5w50? Searching on Walmart.com got me confused.

View attachment 270041
Click to expand...
Nice! For 5K changes and that consumption, any of those oils will work just fine here. My car? I'd run HPL Euro 5W40 (and I do!) b/c it's basically the best oil for these kinds of cars (power etc.) with a HTHS >4 and an excellent base of PAO/ester/ANs, lots of moly, and Star VIIs to hold the visocity to the level they can.
 
Cool car! Castrol 5W-40’s volatility is considerably higher than some similar price alternatives. No good reason to choose it.

Pennzoil and Quaker State 5W-40 are either identical or almost identical. I favor these oils for their very low volatility and strong resistance to form deposits. I choose these over M1 0W-40.
 
I should add that this car is a daily driver and is used for road trips. I have never done so, but I would like to take the car to the drag strip and also to the road courses near me (Sonoma Raceway, Thunderhill, Laguna Seca, and maybe even Buttonwillow). I commute to work about 45 miles round-trip 4-5 days a week. When I can find someone interested I will do some roll racing, but only the highway in "Mexico". I do enjoy canyon carving and will often subject the family to the scenic route on a road trip just to explore newer and smaller roads. However, I do not drive anywhere near all out in these situations; the family couldn't handle it, but neither could the cars cooling or braking systems.

I have already spent far too much money on this car, but I am considering the following additional mods:
  • 034 Motorsport PCV Breather Hose and Catch Can Kit (I already bought this, but haven't had it installed yet)
  • 034 Upgraded Radiator
  • 034 Auxiliary Side Mount Radiator Upgrade
  • 034 StreetSport Engine Mounts
  • 034 2-Piece Floating Front and Rear Brake Rotors
  • 034 Titanium Brake Pad Shim Kit
  • G-Loc R8 and/or R10 Brake Pads
  • 034 Density Line Front and Rear Lower Control Arm Kit
  • 034 Street Density Transmission Mount Upgrade
  • 034 S34 Carbon Fiber Intake System
I should probably also do the following because the power level has been known to stretch the factory cylinder head bolts$$:
  • Wagner Tuning Pro Series Head Stud Set
  • 034 Multi-Layer Steel Head Gasket Set
And I would need to do the following to be able to run even higher power levels$$$$:
  • 034 Botton End Engine Upgrade Package
    • Pauter 4340 Chromoly Cross-Beam Connecting Rods
    • JE Forged Pistons 10.0:1CR
    • Wagner Pro Series Main Stud Set
  • 034 Fuel Injectors (not yet released)
  • Larger turbo (to be determined)
 
I should clarify that I do not mind buying the oil mail order, in fact I prefer buying mail order especially for Walmart because their store shelves are always completely disorganized. I do prefer to keep the price of the oil well below $10/quart unless absolutely necessary.

Nobody mentioned Valvoline Euro 5W40, is it any good?

What about the other HPL oils?: (Yes I know they are over$15/quart) The HPL Euro PCMO 5W40 is HTHS 4.023, but others are as high or higher (bolded below), whats the difference?
  • HPL PCMO 5W40 HTHS is 4.248
  • HPL PCMO 10W40 HTHS is 4.062
  • HPL PCMO 10W50 HTHS is 5.072
  • HPL Premium PCMO 0W40 HTHS is 4.006
  • HPL Premium PCMO 5W40 HTHS is 4.024
  • HPL Premium PCMO 5W50 HTHS is 5.005
  • HPL Premium Plus PCMO 0W40 HTHS is 3.918
  • HPL Premium Plus PCMO 5W40 HTHS is 3.971
  • HPL Premium Plus PCMO 5W50 HTHS is 4.747
  • HPL Super Car 0W40 HTHS is 3.875
  • HPL Super Car 5W40 HTHS is 4.023
  • HPL Super Car 5W50 HTHS is 4.746
 
B6_Dolphin said:
You'll not be happy with the 034 J-Hook 2-piece rotors - too noisy, even after break-in. I had the full set on my '21 SQ5 Sportback, and with Hawk Performance Ceramic Pads,

I would go with Girodisc instead:

https://girodisc.com/audi-b9-rs5-front-rotors/

https://girodisc.com/audi-b8-b9-rs5-rear-rotors/

They are simply slotted vs J-Hook.
Click to expand...
I think my G-Loc GS-1 pads must be glazed because that squeal quite a bit, so I am used somewhat used to embarrassing noises and for my power level I really need more aggressive pads which will also squeal. What kind of noise do the 034 rotors make, is it like a scrubbing/scraping noise? Are you sure that a slotted rotor would make less noise than the J-hooks?
 
redbeardmcgee said:
Thanks to everyone for the responses and my apologies for taking so long to reply. I am overwhelmed by all of the oil options. Some people seem to be interested in the car so I have included a brief history of mods below and attached some hasty pictures. The car looks basically stock except that it is slightly lowered, has wider tires, 10mm wheels spacers, some turbo whistling under load, and maybe some exhaust burbles (depending on the drive mode settings)

I have owned the car since November 2020 when I bought it used with ~35k miles.

Almost exactly a year after buying the car I did the following:
  • 034 Motorsport Stage 1 91 Octane ECU tune and Stage 2 TCU Tune
    • 337 AWHP, 423 FT-LBS AWTQ
    • Calculated 397 HP, 491 FT-LBS Torque at the engine (66.1 HP/Cylinder)
  • Wagner intercooler with charge pipe kit
  • 034 P34 Air Intake
  • 034 Dynamic+ Lowering Springs
  • ECS Tuning Front Adjustable Sway Bar
  • 034 Dynamic+ Rear Adjustable Sway Bar
  • 034 Dynamic+ Billet Adjustable Sway Bar End Links
  • 034 Density Line Adjustable Upper Control Arm Kit (Track Spec)
  • 034 Density Line Adjustable Rear Toe Links
  • 034 Billet Aluminum Rear Subframe Mount Insert Kit
  • ECS Rear Differential and Transmission Mount Insert Kits
  • ECS Billet Front Strut Brace
  • 034 X-Clear Driveshaft Tunnel Brace
  • 265/40ZR18 Michelin Pilot Sport 4S Tires
Over the next year+, I started gathering the parts to go Stage 3 with 034 along with a brake system upgrade: The install happened in September 2023 when the car had 59k and it has 73k now ~14k miles
  • 034 Stage 3+ TTE8810 E60 High Output ECU Tune and Stage 3 TCU Tune
    • 648 AWHP, 615 FT-LBS AWTQ
    • Calculated 774 HP, 716 FT-LBS Torque at the engine (129 HP/Cylinder)
  • TTE810 Hybrid Turbocharger
  • RedStar Downpipe with High Flow GESI Gen2 UHOX 400cpsi 6" Catalyst with full heat shielding
  • OEM Audi RS5 Fuel Fuel Injectors
  • Fuel-It Ethanol Content Sensor
  • NGK Laser Iridium Spark Plugs
  • 034 High Pressure Fuel Pump Piston Upgrade Kit
  • 034 SuperDuper Turbo Inlet
  • 034 Stainless Steel Braided Brake Line Kit
  • Zimmerman Brake Rotors
  • G-Loc GS-1 Brake Pads
  • ATE Typ 200 Brake Fluid
  • 034 Bullet Nose Wheel Stud Conversion Kit
  • 034 10mm Wheel Spacers
  • 275/35ZR18 Continental ExtremeContact Sport 02 Tires
The car's cooling system has not been modified yet and includes, from the factory an oil cooler that is tied to the engine coolant and an auxiliary engine coolant radiator on the driver side of the front bumper.

The car does have an oil temperature display on the dash. Oil temperature seems to be a weak link for the car. When cruising, I see oil temps between 190 and 210 depending on ambient temperature and whether I have it in sport mode or not (where it holds a lower gear), but i usually only see 210 when climbing long hills. Oil temps quickly climb when getting on the power. The highest I have ever noticed was ~240 after doing back to back to back launches and 30-90mph pulls.

The car does consume some oil on the order of 1-2 quarts per 5000 mile OCI. I have never done a UOA.

I am leaning towards the cheaper oils:
  • M1 FS Euro 0W40
  • Castrol Edge Euro 5W40
  • Quaker State Euro FS 5W40
  • Maybe PP Euro 5W40
Do I really need something fancier than that? Would it be wise to top off the oil with M1 5w50 to help slightly with fuel dilution?

Does M1 make more than one 5w50? Searching on Walmart.com got me confused.

View attachment 270041
Click to expand...
Eliminate Castrol Edge from that equation.
Other 3!
I ran M1 0W40 on track at 300f in BMW, and still did 5k OCI.
240f oil temperature is peanuts.
 
redbeardmcgee said:
I think my G-Loc GS-1 pads must be glazed because that squeal quite a bit, so I am used somewhat used to embarrassing noises and for my power level I really need more aggressive pads which will also squeal. What kind of noise do the 034 rotors make, is it like a scrubbing/scraping noise? Are you sure that a slotted rotor would make less noise than the J-hooks?
Click to expand...
With the J-hook, it was not only an audible noise, but also a rough feeling through the pedal under medium to heavy braking. If you check Audizine, you'll see other reports from members who installed the 034 J-hook rotors and experienced similar to mine. I've had both Girodisc and JHMotorsports 2-piece slotted rotors on current or previous Audis I've owned, and they were never as audible nor generated the rumbling feedback through the pedal under medium to hard braking.
 
I would do 2/3rds M1 0W-40 and 1/3rd X2 5W-50 or something like that. They have identical additive packages and I was told by an engineer you can mix as desired. If you’re going straight 0W-40 I would use ESP X4 which is 3.8 HTHS but you can only get it cheaply via Autozone special.
 
redbeardmcgee said:
  • 034 10mm Wheel Spacers
  • 275/35ZR18 Continental ExtremeContact Sport 02 Tires
The car's cooling system has not been modified yet and includes, from the factory an oil cooler that is tied to the engine coolant and an auxiliary engine coolant radiator on the driver side of the front bumper.

The car does have an oil temperature display on the dash. Oil temperature seems to be a weak link for the car. When cruising, I see oil temps between 190 and 210 depending on ambient temperature and whether I have it in sport mode or not (where it holds a lower gear), but i usually only see 210 when climbing long hills. Oil temps quickly climb when getting on the power. The highest I have ever noticed was ~240 after doing back to back to back launches and 30-90mph pulls.

The car does consume some oil on the order of 1-2 quarts per 5000 mile OCI. I have never done a UOA.

I am leaning towards the cheaper oils:
  • M1 FS Euro 0W40
  • Castrol Edge Euro 5W40
  • Quaker State Euro FS 5W40
  • Maybe PP Euro 5W40
Do I really need something fancier than that? Would it be wise to top off the oil with M1 5w50 to help slightly with fuel dilution
Click to expand...
redbeardmcgee said:
Thanks to everyone for the responses and my apologies for taking so long to reply. I am overwhelmed by all of the oil options. Some people seem to be interested in the car so I have included a brief history of mods below and attached some hasty pictures. The car looks basically stock except that it is slightly lowered, has wider tires, 10mm wheels spacers, some turbo whistling under load, and maybe some exhaust burbles (depending on the drive mode settings)

I have owned the car since November 2020 when I bought it used with ~35k miles.

Almost exactly a year after buying the car I did the following:
  • 034 Motorsport Stage 1 91 Octane ECU tune and Stage 2 TCU Tune
    • 337 AWHP, 423 FT-LBS AWTQ
    • Calculated 397 HP, 491 FT-LBS Torque at the engine (66.1 HP/Cylinder)
  • Wagner intercooler with charge pipe kit
  • 034 P34 Air Intake
  • 034 Dynamic+ Lowering Springs
  • ECS Tuning Front Adjustable Sway Bar
  • 034 Dynamic+ Rear Adjustable Sway Bar
  • 034 Dynamic+ Billet Adjustable Sway Bar End Links
  • 034 Density Line Adjustable Upper Control Arm Kit (Track Spec)
  • 034 Density Line Adjustable Rear Toe Links
  • 034 Billet Aluminum Rear Subframe Mount Insert Kit
  • ECS Rear Differential and Transmission Mount Insert Kits
  • ECS Billet Front Strut Brace
  • 034 X-Clear Driveshaft Tunnel Brace
  • 265/40ZR18 Michelin Pilot Sport 4S Tires
Over the next year+, I started gathering the parts to go Stage 3 with 034 along with a brake system upgrade: The install happened in September 2023 when the car had 59k and it has 73k now ~14k miles
  • 034 Stage 3+ TTE8810 E60 High Output ECU Tune and Stage 3 TCU Tune
    • 648 AWHP, 615 FT-LBS AWTQ
    • Calculated 774 HP, 716 FT-LBS Torque at the engine (129 HP/Cylinder)
  • TTE810 Hybrid Turbocharger
  • RedStar Downpipe with High Flow GESI Gen2 UHOX 400cpsi 6" Catalyst with full heat shielding
  • OEM Audi RS5 Fuel Fuel Injectors
  • Fuel-It Ethanol Content Sensor
  • NGK Laser Iridium Spark Plugs
  • 034 High Pressure Fuel Pump Piston Upgrade Kit
  • 034 SuperDuper Turbo Inlet
  • 034 Stainless Steel Braided Brake Line Kit
  • Zimmerman Brake Rotors
  • G-Loc GS-1 Brake Pads
  • ATE Typ 200 Brake Fluid
  • 034 Bullet Nose Wheel Stud Conversion Kit
  • 034 10mm Wheel Spacers
  • 275/35ZR18 Continental ExtremeContact Sport 02 Tires
The car's cooling system has not been modified yet and includes, from the factory an oil cooler that is tied to the engine coolant and an auxiliary engine coolant radiator on the driver side of the front bumper.

The car does have an oil temperature display on the dash. Oil temperature seems to be a weak link for the car. When cruising, I see oil temps between 190 and 210 depending on ambient temperature and whether I have it in sport mode or not (where it holds a lower gear), but i usually only see 210 when climbing long hills. Oil temps quickly climb when getting on the power. The highest I have ever noticed was ~240 after doing back to back to back launches and 30-90mph pulls.

The car does consume some oil on the order of 1-2 quarts per 5000 mile OCI. I have never done a UOA.

I am leaning towards the cheaper oils:
  • M1 FS Euro 0W40
  • Castrol Edge Euro 5W40
  • Quaker State Euro FS 5W40
  • Maybe PP Euro 5W40
Do I really need something fancier than that? Would it be wise to top off the oil with M1 5w50 to help slightly with fuel dilution?

Does M1 make more than one 5w50? Searching on Walmart.com got me confused.

View attachment 270041
Click to expand...

Nice car, I have a C63 that just put down 730hp on the dyno last week.....I use Ravenol VST 5w40.......any oil with a higher HTHS will work just fine.....change it every say 2k-3k because youre running E50-60 blend......Amsoil works well also

For the Euro cars....I like to stick with the oils that have the MB 229.5 certs.....its the best cert for high HP Euros......no low SAPS non sense

car.webp


car oil.webp
 
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