Can anyone give a website or an autoparts store that carries Schaeffers Oil? Looking into getting the 7000 series for my 08 Z. Like the numbers on the UOA's people have been posting. IF I can't find it, I'll just go with GTX, also shows impressive numbers. Thinking of sticking with the 5w30. Temps usually top out at about 100 degrees in my part of texas. Use the car as a weekend toy. Any suggestions on the weight I should be using would also be appriciated. Most guys are using the 0w40, skepitical on this cause manual recommends 5w30.

 

http://www.schaefferoil.com/dealer_locator.html

 

I know this thread is old. I've been using shaffers 5w40 supreme 9000

 

I have been using Castrol EDGE Titanium the last two oil changes since my stroker was completed with great results.

It is under 40 for a 5 quart jug from Walmart. Way cheaper than any of the high end oils and has gotten great results in the engine and from Blackstone when I have had it analyzed.