Post your latest oil change

[GemStater]

2006 Honda ACCORD EX
3.0L 6-cyl Engine Code J30A5, 5 speed BAYA automatic
Miles: 144,861
Date: 1/11/2025
Out: Pennzoil Platinum 0W-20 / Fram XG7317
In: Valvoline Restore & Protect 5W-20 / STP S7317XL

 

[Oliveoil2]

January 2nd

2008 Lexus GX470

Out: AMSoil 5W-30 Full Synthetic, Wix Filter
In: Kirkland 5W-30 Full Synthetic, Toyota Filter

Will reduce OCI from 10K to 5K.

Why?

 

[Oliveoil2]

2016 FIAT 500x POP
1.4L MultiAir Turbo, 6-speed manual.
Out: Kirkland 15W-40 & Rislone Conditioner.
Flush In: SuperTech 20W-50 & Marvel Mystery Oil.
Flush Out: ^That brew, pitch black after just 1hr/70 miles.
In: Mobil Delvac1 ESP 5W-40.

Ouch! How many miles on the Fiat?

 

[Bill7]

How can we actually state this as fact? 5k mile intervals on Kirkland may be totally fine and well under the limitations of what it's disperant package can handle. We don't know that Amsoil for twice as long would keep the engine cleaner unless we bench tested two of his engines under his operating conditions side by side and then tore them down.

Any Dexos 1 Gen 3 approved oil (Kirkland included) should keep an engine very clean over a 5,000 mile oil change.

 

[Patman]

Any Dexos 1 Gen 3 approved oil (Kirkland included) should keep an engine very clean over a 5,000 mile oil change.

But yet there are also people here on this site who had been doing 5k intervals with various off the shelf oils and then found that once they switched to HPL or VRP that it was doing some cleanup. So not every oil out there is capable of keeping the engine as clean as they could be, even with 5k intervals.

 

[Pablo]

Any Dexos 1 Gen 3 approved oil (Kirkland included) should keep an engine very clean over a 5,000 mile oil change.

It may have in the olden days, but define VERY clean. I think the definition is really "sorta clean enough maybe, maybe not"

 

[Glenda W.]

I’ve found in some engines an oil that far exceeds piston cleanliness standards is needed to avoid oil consumption and sticking oil control rings. Much easier to avoid than clean up after the fact, believe me…..

 

[GR_CoB]

Ouch! How many miles on the Fiat?

167k

 

[Bill7]

I’ve found in some engines an oil that far exceeds piston cleanliness standards is needed to avoid oil consumption and sticking oil control rings. Much easier to avoid than clean up after the fact, believe me…..

In those vehicles, would a 4,000 mile oil change interval be the best way to prevent the oil control rings from getting stuck.

 

[Patman]

In those vehicles, would a 4,000 mile oil change interval be the best way to prevent the oil control rings from getting stuck.

If the rings were getting stuck with 5k intervals it’s doubtful that reducing the interval by 1000 miles would make much difference. A better oil is the solution to that problem.

 

[Glenda W.]

In those vehicles, would a 4,000 mile oil change interval be the best way to prevent the oil control rings from getting stuck.

Badly designed low tension oil rings are the real problem, but combining that with low quality base oils is a bad combo IMO. Quality oils with high solvency seem to produce pistons well cleaner than industry standards even at longer oci’s. Lower quality oils start leaving behind piston deposits from the start and I’m not sure shorter oci’s will prevent the inevitable. 5k oci’s didn’t work for me. Now if R&P works as claimed it’s a game changer because of the cost vs boutique oils. Only time will tell….I’m testing those claims now.

 

[Adambomb7777]

2015 Fiesta ST with 198k miles

Out: Castrol edge 5w30k, wix 51516
In: same oil, Purolator pbl20195

2010 Mazda 5 with 181k miles
Out: Amsoil Signature 5w30, Pbl20195
In: Castrol edge HM with some Ceratec, Fram FS3600

 

[Bill7]

Badly designed low tension oil rings are the real problem, but combining that with low quality base oils is a bad combo IMO. Quality oils with high solvency seem to produce pistons well cleaner than industry standards even at longer oci’s. Lower quality oils start leaving behind piston deposits from the start and I’m not sure shorter oci’s will prevent the inevitable. 5k oci’s didn’t work for me. Now if R&P works as claimed it’s a game changer because of the cost vs boutique oils. Only time will tell….I’m testing those claims now.

Would a GTL, PAO, or Ester based oil excel at keeping piston rings clean instead of just using a regular group III synthetic?

 

[cheesepuffs2]

But yet there are also people here on this site who had been doing 5k intervals with various off the shelf oils and then found that once they switched to HPL or VRP that it was doing some cleanup. So not every oil out there is capable of keeping the engine as clean as they could be, even with 5k intervals.

It's still misleading to say, "The engine will stay cleaner inside with Amsoil" at longer intervals as a blanket statement. While we've had members find indications of additional cleaning with HPL, we've also had members that have run nothing but regular old Castrol GTX for years on end, change the valve cover gasket, and reveal a top-end in fantastic condition. Depends on the engine and operating conditions.

 

[Glenda W.]

Would a GTL, PAO, or Ester based oil excel at keeping piston rings clean instead of just using a regular group III synthetic?

IMO that’s the best available formula at Walmart.

 

[Pepsibottle1]

1996 Lincoln Town Car

Out: Pennzoil Platinum HM 5w30, Motorcraft 810A 6,732mi
In: Pennzoil Full Synthetic HM 5w30, Motorcraft 810A

PP wasn’t on rollback this time what a shame, had to use the peasant grade - Bronco Sport tommorrow. I went a little longer than I wanted to on but cars but I’m sure the oil is still good enough for govt work

 

[ATex7239]

‘23 Toyota Sienna XLE Hybrid
32,380 miles / 4,780 miles OCI
Out/In: Pennzoil Platinum 0W20 / YZZN1 Filter
Off: Factory Lug Nuts
On: White Knight Chrome Plated Lug Nut 12 mm x 1.50 Lug nuts NEA 153074

Took advantage of the sunshine and warmer temp. Preemptively replaced all the factory two piece lug nuts with single piece. Some of the factory Yokohamas are looking pretty rough. I’ll be picking up some new tires at DT real soon.

 

[userfriendly]

2018 Chevrolet 3500 L5P 59,260 kms on truck; out 15w40 T5, in; 15w40 Delvac 1300.

2013 GMC 1500 5.3L 350,500 kms out;
5w40 ST, in same.

2022 Acadia 3.6L 31,250 kms on vehicle.
Out; 10w40 GTX API SP, in same.

 

[Patman]

It's still misleading to say, "The engine will stay cleaner inside with Amsoil" at longer intervals as a blanket statement. While we've had members find indications of additional cleaning with HPL, we've also had members that have run nothing but regular old Castrol GTX for years on end, change the valve cover gasket, and reveal a top-end in fantastic condition. Depends on the engine and operating conditions.

It’s not misleading at all. You just don’t want to accept it because it goes against your own opinions.

 

[irollo]

‘23 Toyota Sienna XLE Hybrid
32,380 miles / 4,780 miles OCI
Out/In: Pennzoil Platinum 0W20 / YZZN1 Filter
Off: Factory Lug Nuts
On: White Knight Chrome Plated Lug Nut 12 mm x 1.50 Lug nuts NEA 153074

Took advantage of the sunshine and warmer temp. Preemptively replaced all the factory two piece lug nuts with single piece. Some of the factory Yokohamas are looking pretty rough. I’ll be picking up some new tires at DT real soon.

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New tires today?