2020 Rav4 Hybrid 60k mi; Valvoline Restore and Protect 5W-30 4k mi

[buster]

It does seem like modern oils do a good job mitigating wear despite fuel dilution. I still would rather not have high fuel dilution. I guess the Honda 1.5T is a good example of an engine being able to last a long time despite high fuel dilution.

This is from Amsoil:

Why is fuel dilution a problem?​

• Reduced oil viscosity interferes with formation of a durable lubricating film, inviting wear. It also negatively affects the oil’s ability to function as a hydraulic fluid, which is critical in engines with variable valve timing
• Fuel can wash oil from the cylinder wall, causing higher rates of ring, piston and cylinder wear
• Reduced effectiveness of detergency additives limits the oil’s ability to guard against deposits
• Increased oil volatility results in higher oil consumption requiring more frequent top-offs
• Accelerated oxidation reduces the oil’s service life and requires more frequent oil changes"

 

[fueldelusion]

Time and time again, we see fuel dilution not having an impact on wear just like this sample. Bitogers always worrying about something for nothing

Hm, I am guessing you didn’t reference the original sample’s fluid time, viscosity and wear metals.

 

[OilStainedNapkin]

Hm, I am guessing you didn’t reference the original sample’s fluid time, viscosity and wear metals.

Doesn’t worry me one bit. Another data point would be helpful but I stand by my statement (as a laymen )

 

[fueldelusion]

Doesn’t worry me one bit. Another data point would be helpful but I stand by my statement (as a laymen )

Sure more data is great but I’m going to disagree with your logic: the second UOA looking good with high FD seems good enough to prove your point, but the first with high FD and awful wear isn’t relevant? Can’t have it both ways.

 

[GenSan]

My 2024 Rav4 Prime XSE currently has 16,000+ miles with Ravenol 0w-16 EFE. Previous oil used in 0w-16 were Pennzoil Platinum, Eneos , and Idemitsu IFG7. 3 UOA revealed all previous oils sheared down out of grade and had decreased flashpoint values in 4,000 miles of use. I am at 4,000 miles already on the Ravenol and plan on running it a little bit longer and then get a UOA. If the Ravenol holds up with UOA results then I have found my oil and will extend to 7,500 mile or maybe more oil change intervals.

 

[We're Metals]

My 2024 Rav4 Prime XSE currently has 16,000+ miles with Ravenol 0w-16 EFE. Previous oil used in 0w-16 were Pennzoil Platinum, Eneos , and Idemitsu IFG7. 3 UOA revealed all previous oils sheared down out of grade and had decreased flashpoint values in 4,000 miles of use. I am at 4,000 miles already on the Ravenol and plan on running it a little bit longer and then get a UOA. If the Ravenol holds up with UOA results then I have found my oil and will extend to 7,500 mile or maybe more oil change intervals.

Post up your reports if you haven't already

Just remember, Toyota says you're good with TGMO 0w-16 for 10,000 miles.

 

[GenSan]

Post up your reports if you haven't already

Just remember, Toyota says you're good with TGMO 0w-16 for 10,000 miles.

LINK

 

[oilstained]

Time and time again, we see fuel dilution not having an impact on wear just like this sample. Bitogers always worrying about something for nothing

I have read in another thread, that fuel dilution is accounted for by OEM. Is there evidence to support this claim?

 

[millerbl00]

Severe service for Toyotas is LESS than 10000 miles. Also 1 year max on oil changes

 

[Dave1027]

Stick with the VR&P 5w30. It seems to work very well for this application. The wear numbers are fantastic. The higher viscosity of the 5w30 is offsetting the fuel dilution nicely.

 

[Jetronic]

For cold, short trips and the nature of the hybrid Id stick with 0w-20

I would go the opposite way. a thin cold oil is worse than a thick cold oil. and a thick oil get's hot faster.