I was just wondering what weight oil everyone is running in their engines. I'm thinking about putting 10w40 in for the summer.

TONY

 

Ive been running Mobil1 15-50. But then its almost like being in hell here all year long j/k. It doesnt matter what you run in Florida. Just dont go too thick for cool weather.

 

I run Mobil Synthetic 5w-30 all year around, and live in Central Ohio.

 

I run Castrol 0W-30 (the green stuff) year round in Texas.

 

I run Valvoline 10W-30 year-round. Works fine for me.

 

I run 5W30 in mine - but I only drive it in the summer - although I do start it a few times over the winter

 

What's the 0w30???? There's just too many oils to choose from. And I can't decide to use synthetic or not.

TONY

 

Its very simple run 5w30 and never have to make a choice. As to synthetic or not thats up to your wallet and habits. If you change your oil on a regular basis save money and stay away from synthetics. If you have $$$ change it when you feel like it or at extended periods use synthetics.

 

I believe that 0W30's are synthetic oils, or at least semi synthetic

I know guys here who run 0W30 because it builds pressure alot faster and makes for easier cold weather starts, especially guys who work out in the bush who can't plug their trucks in at night during the winter

 

5w30 mobil 1..

change at over 7500 miles..

going on 60K miles now.. No issues..

 

I have run Mobil 1 0W-40, Mobil 1 0W-40 mixed with Mobil 1 15W-50 (oil pressure issue), Redline 10W-40, and I currently have Amsoil 5W-40 European Car Formula in it.

 

Do synthetics protect against the breakdown of oil at higher revs? Or is the only advantage to using synthetic oil being able to go longer between changes?

TONY

 

I run amsoil 5w-30 all year long.. best oil ive found

 

Amsoil Series 2000 0W-30

 

I dont understand. I use mobile 1 5w30 but I change it atleast every 3000 miles, even 2500 miles. Is this bad or what? 2000 Z28 with 91000