Anyone know if using Royal Purple would void the enginewarranty given that it's supposedly better than many of the officially approved oils?

 

it shouldn't i use it but i don't have a factory warranity

 

Why chance it, just use an approved one until the warranty is over. Mobile 1 0w40 is good stuff.

 

My car is full of Red Line!
Oil
Tranny
Cooling
Diff

I can't believe I spent so much on lubricants

 

From the RP website:

Can I put Royal Purple into my brand new car? Yes. Royal Purple currently offers many viscosity grades of API Licensed Motor Oils. To allow for proper break in of the engine, Royal Purple recommends waiting until the manufacturer’s first scheduled oil change or a minimum of 2,000 miles in new gasoline engines. Allow 8,000 to 10,000 miles before using Royal Purple in diesel engines.

 

from what I read its synthetic so is the norm for new cars so Its just a name brand like valvoline
http://images.google.com/images?hl=e...ages&gbv=2

 

Here is the list of recomended oils in North America

Castrol, Castrol Syntec 5W-40
Chevron, Chevron Supreme Synthetic 5W-40
Elf, Elf Excellium LDX 5W-40
Kendall, Kendall GT-1 Full Synthetic Motor Oil 5W-40
Mobil, Mobil 1 0W-40
Pennzoil-Quaker State, Pennzoil Synthetic European Formula 5W-40
Pennzoil-Quaker State, Pennzoil Synthetic European Formula Ultra 5W-30
Pennzoil-Quaker State, Quaker State Full Synthetic European Formula 5W-40
Pennzoil Quaker State, Quaker State Full Synthetic European Formula Ultra 5W-30
Seventysix Lubricants, 76 Pure Synthetic Motor Oil 5W-40
Texaco, Havoline Synthetic 5W-40
Total, Total Quartz 9000 5W-40
Valvoline, Valvoline Synpower 5W-30
Valvoline, Valvoline synpower 5W-30