whats a good oil? I was thinking royal purple. Lots of my friends recommend it but there not Hummer owners. What do you guys use? Thanks. Your Friendly neighborhood H2 driver. Lol

 

Best advice is what ever you pick, stick with it. Metal has memory. So, if u DO use Royal Purple, which is an incredible product but a BIT pricey, use it ALL THE TIME... If ya want another CLOSE option, I use Mobile 1 Full Synthetic cause I usually try an change b4 I hit 3k miles. ALSO, very important... Wix Oil Filter! I SAY MANDITORY! DO NOT use a generic!

 

I use and am completely comfortable with the Mobil 1 and AC Delco filter combo. The frequency at which you change your oil has a lot more bearing on the wear and tear of your engine than using any particular brand of premium oil and filter.

 

its still cheap insurance,,,AND a mental feel good thing!

 

+1. Good combo. Change it when the vehicle tells you to.

 

UNDER 3k miles? Wtf? Most synthetic oils are good for 5-7k miles, with some stretching as far as 10k miles in gasoline motors.