Oil Question - not related to previous posts

[silicuda]

My car ownership guide says use 5-30 oil, my mechanic said I can use thicker oil, like 20-30 and it will be fine..

so if I use something in between like 10-30 is that cool?

[HPbyChevy]

Yes. Depending on your application and the temperature of your climate, you can run 10-30.

Your oil pressure gauge reading will probably go up, because you're switching to a thicker oil.

Remember, your oil pump has to push that thicker oil too, but I don't think that should be to big a problem.

[V6Bob]

The question is why would you want to? When the engine is warmed up they all will be very close in thickness (30). The 5W-30 will be thinner and flow better at startup, which seems to be a good thing.

[Camarorulz]

I always run 10w-30, but you're in a colder climate so I dunno, you might want to run a thicker (thinner? which one is better for cold?)

[CamaroL32]

My theory is to run 5w in the winter since the oil is thinner, it will flow better when its cold. Then run 10w in the summer for a little thinker protection. I dunno I might try that this summer.

[Blizzard96]

I've been using 10w-30 here in California since it doesn't get that cold though this next winter I'll try it just for the heck of it.