Motor Oil [Archive] - Hummer H2 Forum: H2 forums

Motor Oil

08-03-2009, 01:16 PM
I have been running Mobil 1 synthetic oil since I purchased my Hummer H2 in 2005. A mechanic friend of mine said it would be a good idea to switch to regular motor oil since I have over 100,000 miles on the vehicle. He also mentioned that if I would stick with synthetic oil that the motor would wear at a faster rate. What type of oil is recommended on a Hummer H2 that has 131,000 miles?

09-06-2009, 08:18 PM
I have about 97K on mine and I plan to switch to the Mobil 1 extended performance. I dont see why one would change, but alas I am not a mechanic. Let me know what you find out.