Originally Posted By: dixiedude
first timer, just curious which is better, running shaffer,s 15-40 7000 in my 5.9 cummins, just bought 06 sennia with 40.000 on clock . thought on the shaffer,s compared to m1, or toyota,s blend
I ran Mobil 1 for about 7-8 years in my 01 Impala LS still only has about or around 100k on her. Never had any issues with Mobil 1, well with any oil for that matter. My Jeep had a healthy life on Wolf's Head conventional, Pennzoil YB, Esso etc etc. My Xterra since i've purchased it has used Synpower and PP without issue. Trying to finish my stash up so I can buy more, used PP in the Impala this weekend and put Mobil5000 in the Jeep.