22 Acura RDX Synthetic Blend

[NormanBuntz]

I don’t understand the hesitancy of using a full synthetic in a modern engine.

For the Acura dealer, the consideration is cost. BTW the last time I checked, engine oils made for Acura and Honda were supplied by Phillips 66, formerly Conoco Phillips. Good stuff, but if the OLM for the RDX turbo typically goes 6-8K before reaching 10%, I'd prefer a full synthetic all day long.

 

[edyvw]

I don’t understand the hesitancy of using a full synthetic in a modern engine.

it is beyond parody IMO.

 

[OVERKILL]

aint got the first thing to do with it. you said "turbo= fully syn" sump size makes no difference

Ummm, yes it does... Smaller sumps can get much hotter, much quicker, this affects oxidation which in turn degrades the oil. If you've only got 4 quarts of oil, that's not a lot of volume with which to dilute those degraded oil products and once the additive package is overwhelmed, you'll get deposits.

A tiny 4-quart sump on a small turbo gasoline engine is a very different environment than that of an OTR diesel that holds 48 quarts. They also tend to spec very different grades of oil. A 15W-40 has a reasonably heavy base oil because of the 15W-xx Winter grade, so even being Group II, it's going to be more resistant to degradation than a thinner base oil of the same family, like say a 4cSt Group II that you might blend a conventional 5W-30 from.

 

[Revving2Redline]

Turbo=full synthetic, all the time, every time.

That 2015 R18 1.8 I ran the factory fill till four thousand, used one of my four freebies and they put 0w20 blend and I ran it four or five more then changed to 0w20 Magnatec FS. At 5,000 miles I would fill okay using full synthetic of the oem wt. But, with DI and or induction forced...I would use a 0w30 probably.

 

[Slow Car Sport Mode]

Ummm, yes it does... Smaller sumps can get much hotter, much quicker, this affects oxidation which in turn degrades the oil. If you've only got 4 quarts of oil, that's not a lot of volume with which to dilute those degraded oil products and once the additive package is overwhelmed, you'll get deposits.

A tiny 4-quart sump on a small turbo gasoline engine is a very different environment than that of an OTR diesel that holds 48 quarts. They also tend to spec very different grades of oil. A 15W-40 has a reasonably heavy base oil because of the 15W-xx Winter grade, so even being Group II, it's going to be more resistant to degradation than a thinner base oil of the same family, like say a 4cSt Group II that you might blend a conventional 5W-30 from.

Many Nissans have small sumps too, like 350Zs they overheat on track easy.

Now you're taking about base oils. Kind, or grade?

 

[eroberts82]

Really? Nothing to do with it?
Type of turbo? Cooling? Space available to design all that? Last time I checked Acura doesn’t have space under the hood that MACK has etc.
You obviously are not familiar with VW 1.8 Turbo issues in the US in 90’s and lack if those issues in Europe.

ok................so its not the oil, its the system that cools it

 

[tolian21]

You need to change oil every 3-4k miles on this car and use 5w-30.

 

[Slow Car Sport Mode]

ok................so its not the oil, its the system that cools it

Oil is a key part of that system.

You'll get *endless debate* on this, but one of the very primary jobs of motor oil is to transfer heat between moving parts. It does multiple other things as well.

 

[edyvw]

ok................so its not the oil, its the system that cools it

I would say when oil is used it depends on all factors. I am not sure that has to be pointed in this forum.
To add, type of exploitation. What you talking about makes xxxx miles every day. That Acura makes 10mls every day maybe, with 2-3-4 start ups.

 

[DGXR]

Dealerships need to make money and they use the cheapest oil that meets the required specification. Looks like a syn blend meets the spec here. Clearly BITOG prefers full syn for the application but the "free" dealership services do not provide a choice. Bottom line, syn blend meeting the spec will not cause excessive wear, especially with the short service intervals. Don't worry, just switch to full syn after the dealer services are used up.

 

[GSCJR]

I have been using this on Hondas, since it's debut, without incident.

 

[tolian21]

I have been using this on Hondas, since it's debut, without incident.

On 2.0t engine? How was your fuel dilution in 2.0t?

 

[GSCJR]

On 2.0t engine? How was your fuel dilution in 2.0t?

I haven't used it on the 2.0T yet, I have been using it in the K24, R18 and the 1.5T; The 1.5T oil reeks of fuel. I may use 5w-30 on the 2.0T based on your UOA's, so thanks again for posting those.

 

[DavidJones]

The 2022 RDX Turbo holds 5.1 quarts.

 

[wemay]

I have been using this on Hondas, since it's debut, without incident.

If I could find it around here, I'd use it too in the Accent. But not in the RDX 2.0T too often.

 

[Greasymechtech]

Honda also sold a 0w-20 syntheticBLEND oil
They don't require full synthetic. They require a current "API" 0w20 oil. So, doesn't need to be full synthetic.

I don't know what the cost savings are to a 'blend' when compared to a 'full' synthetic. Maybe someone at Hondacura can answer that.

I haven't seen the quarts sitting at the Honda parts counter in a while. But, they had the blend right next to the full synthetic with a minor price difference.

If it were my vehicle, I'd request a full synthetic, and then pay more since its not a requirement. Knowing what we know of certain Hondacura engines with fueling issues, I'd considered an analysis to see how the oil is doing with your driving style. I would adapt the grade and thumb my nose at the owners manual and Acura.

Looks like BP/SOPUS also have a 'blended' 0w20, which means bulk/totes can also be licensed toward API SP/GF6 and not be full synthetic for that 0w20 grade.

https://www.shell-livedocs.com/data/published/en-US/fc51dc58-8ccd-41f3-a61a-9c2850b03c03.pdf

https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/117753A8633835DB802585EA006E958E/$File/bpxe-bfjerf.pdf

Honda Genuine SB 0W-20 | SCL

HONDA GENUINE SYNTHETIC BLEND 0W-20 is formulated to provide excellent wear protection, to minimize the formation of sludge and varnish, and to resist viscosity and thermal breakdown even in severe service. Honda Genuine Synthetic Blend Motor Oils are pre

shop.sclubricants.com

And, page 593:

http://techinfo.honda.com/rjanisis/pubs/OM/AH/BTJB2222OM/enu/BTJB2222OM.PDF

Owner's Manuals | 2022 Acura RDX | Acura Owners Site

Find detailed technical information on your 2022 Acura RDX's operation & maintenance, including online owner’s manuals & guides.

owners.acura.com

 

[tolian21]

Keep in mind that acura manual says 0w-20 is recommended oil, and not required. Whenever they require something, the manual calls it “specified”.