Great68
Founding Member
I used to use Mobil 1, but I change the oil so often, and drive my car so little it's not worth it. Just regular Pennzoil 20w50 for me.
70vert said:I remember doing this with motorcycles a few years back, and finally settled on Mobil 1 15w-50, without the "CF" designation. As I remember, the CF stands for "Conserving Friction" and can help mileage and wreaks havoc with a wet clutch.
70vert said:I remember doing this with motorcycles a few years back, and finally settled on Mobil 1 15w-50, without the "CF" designation. As I remember, the CF stands for "Conserving Friction" and can help mileage and wreaks havoc with a wet clutch. I broke it in with dino oil, and have been running Mobil 1 for 14,000 miles or so with no clutch probs. Interestingly, my buddy, who bought the same bike from the same dealership on the same day, and runs moto-specific dino oil, swears that my bike has more power than his even though it has more miles . . .
The motorcycle guys dig Mobil 1 too, and I have heard the same good stuff about amsoil.
gp001 said:I've used Mobil 1 10w-30 in my 5.0 based 347 since I broke it in. Never had a problem and I close to 20k HARD miles.
zookeeper said:I think the bottom line is that any oil is better than no oil, right? You can argue all day that one is better than the other, but has anyone here, EVER had an oil related failure in a well-maintaned daily driver? I'd bet not, regardless of oil type. If you check the oil regularly, change the oil at resonable levels and drive within 15 MPH of sanity, you'll likely wear out the car before you ever experience any engine failure. By the same token, has anyone EVER switched to Synthetics and picked up a noticeable difference in ET, or speed? Picking up 1 mpg really doesn't count, because I'd bet any one of us could boost our mileage by 1mpg by just changing our driving habits. I've seen these posts a lot in the MX forums and everyone has an opinion, but the bottom line is poor maintenance kills more cars than poor oils do.
washMO66 said:I have a friend that swears that the mobil 1 syn is the reason he got 250K miles out of his yukon....
Not from a GM product... but my buddy drives alot and goes through alot of cars, his first Yukon didn't fair as well with regular old oil????65ShelbyClone said:It certainly wasn't good engineering.