Switching from 0w-20 to 0w-30 experience

[facility1]

seems like the Pennzoil 5w-30 ultra acts like a 0w-30 in the mrv and ccs testing compared to some 0w-30 other oils, perhaps due to the GTL base fluid used and other additives.

 

[Gladiator007]

seems like the Pennzoil 5w-30 ultra acts like a 0w-30 in the mrv and ccs testing compared to some 0w-30 other oils, perhaps due to the GTL base fluid used and other additives.

Amsoil's is a tiny bit lower.

 

[kschachn]

But of course it is still a 5W winter rating, not a 0W. Acting like one isn't the same as performing like one.

 

[ka9mnx]

Their is an easy solution to the dry start. Prime the filter every time you start the vehicle. It makes a huge difference

That is not an option on any of my vehicles.

 

[EBruce]

I have a Jeep GC Limited 3.6 V6 and used O-20 till the warranty was over and went to 5-20. Not much difference in the two. Next OCI I will go to 5-30. Here in Fla today at 7AM it was 88 degrees and 94 at noon. My reason for 5-30. I also have a GMC Canyon with a 3.6 in it and between the two motors there doesn't seem to be much difference. Same cam, valve rockers and cam chain araingement is basicly the same. I will now be able to also have one oil for both which is Mobil 1 5-30 changed at 20% or 6000 miles.