0w20 more engine wear?

[Upnarms]

I know this isn't the test of all tests, but I saw this project farm video and couldn't help but notice the wear scar for 0w20 was much worse than the 5w20. Makes me think about going back to 5w20, which was what the JK 3.6 called for. They claim the 0w20 gives better fuel efficency but at what cost?

I live in AZ where temps rarely get below freezing. I hear the 0w20 flows better in very cold temps.

Any thoughts on running 5w20? I'm already past my warranty, so voiding it isn't my concern. My greater concern is engine wear.

Curious as to everyone's opinion and if anyone has been running 5w20 in the JL 3.6.

Sponsored

 

[John VonJeep]

 

[Fitzz47]

5/30 summer
5/20 winter seems to work fine for me.

 

[chevymitchell]

I run 6 quarts of 5w-40 in Pain Train.

I wouldn’t worry about 0w-20 being an issue. Just keep up with the intervals and you’ll be just fine.

I’m not sure where the thinner oil fear has come from. MFG’s have been using 0w for well over 10 years now. There is nothing wrong with 0 winter weight oil.

 

[roaniecowpony]

I know this isn't the test of all tests, but I saw this project farm video and couldn't help but notice the wear scar for 0w20 was much worse than the 5w20. Makes me think about going back to 5w20, which was what the JK 3.6 called for. They claim the 0w20 gives better fuel efficency but at what cost?

I live in AZ where temps rarely get below freezing. I hear the 0w20 flows better in very cold temps.

Any thoughts on running 5w20? I'm already past my warranty, so voiding it isn't my concern. My greater concern is engine wear.

Curious as to everyone's opinion and if anyone has been running 5w20 in the JL 3.6.

I've been running 5w30 M1 EP for the past year or so.

 

[Upnarms]

I've been running 5w30 M1 EP for the past year or so.

Good to know, thanks

 

[Old Dogger]

While we had ours, we ran 5W30 PPU. in ours. But we are in hot as hell Phoenix. But If I lived in Fairbanks, then it would be 0W20.

 

[AZpueblo]

I run 6 quarts of 5w-40 in Pain Train.

I wouldn’t worry about 0w-20 being an issue. Just keep up with the intervals and you’ll be just fine.

I’m not sure where the thinner oil fear has come from. MFG’s have been using 0w for well over 10 years now. There is nothing wrong with 0 winter weight oil.

If your running 6 quarts, you're one quart overfull, as that's a 5qt engine.....

 

[AZpueblo]

Also in AZ and I run 5/30 PPU as well since I always take an oil sample for analysis and find that the 2.0T, being a direct injection (DI) engine, does tend to have a bit more fuel dilution over time. It's small, but normal for DI engines, especially due to the start/stop nature of PHEV. In addition, oils shear over time as well. Add that to a bit of fuel dilution (0.2-0.4) and it'll measure below a 20 weight...too thin for 110 degree temps.

 

[chevymitchell]

If your running 6 quarts, you're one quart overfull, as that's a 5qt engine.....

Yes. I’m well aware.

I run 6 quarts since I run a RIPP blower.

 

[Upnarms]

I run 6 quarts of 5w-40 in Pain Train.

I wouldn’t worry about 0w-20 being an issue. Just keep up with the intervals and you’ll be just fine.

I’m not sure where the thinner oil fear has come from. MFG’s have been using 0w for well over 10 years now. There is nothing wrong with 0 winter weight oil.

Could be total coincidence, but the few vehicles I have driven with 0w20 all consume oil. At work I drive an '18 Silverado that was new at the time. Consumed 2 quarts between changes. Fleet guys said it was an issue with those vehicles. My jl seems to lose a quart between changes, especially if I'm doing some towing up the mountains during that interval. I saw some consumption like that with my last jk and 5w20. My TJ doesn't seem to lose a drop. 10w40 in the 4.0.

My concern was the wear difference i see in that test. Interesting results

 

[Slippery Pete]

 

[At Risk Ute]

Anyone running Rotella 5W40? Wish it came in a 5 qt jug.

 

[GtX]

Anyone running Rotella 5W40? Wish it came in a 5 qt jug.

I'm running Pennzoil Platinum Euro Full Synthetic 5W-40.

 

[At Risk Ute]

I'm running Pennzoil Platinum Euro Full Synthetic 5W-40.

I’m going to Wally World today and may grab that. Always ran 5W40 in my similar Mazdaspeed direct injection 4 banger turbo.

And stay away from Mobil 1 filters from personal experience…

https://www.gmfullsize.com/threads/mobil-1-m1-113a-production-error.335456/

Sponsored