what oil is everyone using for the up coming hot conditions?

 

I use an SPF-30 waterproof, and keep some aloe handy when I miss a spot and burn

Seriously, use 15w-40 year round. I'm old enough to remember dad having the 10wt in the winter and the 30wt in the summer.

Eric

 

is castrol sytec good? is syntec the same as sythetic? is that the same name?

 

ive always run what GM recommends for the engine, 5w30. i use valvoline durablend. i think anything more than 10w will be too thick, unless you have some serious clearances or oil consumption. but for a normal engine, i would go thicker than 10w30.

 

in my camaro i run 5w30 synthetic all year round (i try to put it away when it snows here in canada depending if i have another car or not)

 

note: if you run synthetic oil- you have to run higher weight because it is thinner and flows easier, thus creating a slight loss in oil pressure. Hotter climates and hard driving call for a heavier weight oil.

I run 15w50 Mobil one full synthetic. I have an '89 chev truck (350) that has OVER 400,000 on the original bottom end bearings, etc... all from full synthetic oil.

 

I usually do 10-40w Mobil One for the summer and then 5-30w for the winter. Stupid New England, 100 degree summers and 5degree winters.

 

I use 5w30 year round but in the summer time I may dilute the 5w30 with a little 10w30 but not full 10w30.