Synthetic Oil

[Nuclear]

I use Mobile 1 5w20 in my 2000 v10. I have 23,000 on it so I try to keep it within the Ford specifications. I use the Ford filter also.

[mikebough]

Originally Posted by boogerman

Asking for suggestions, I have a 2000 class c with V10 triton engine it has 42,000 miles on it. I have only had it a short time and it is about do for a oil change.I have no idea what type oil was put in by the last owner. I am wanting to run a 100% Mobile one Synthetic oil. But can't make up my mind weather to run 5W20 or 5W30. Leaving in Aug for about a 1800 mile trip.

Synthetic will take a lot more heat without burning or caking, but no matter what you use I would add STP. I have worked on turbines and generators for forty + years and with STP on the bearings one man can keep a 180 ton rotor turning with no problems.
Mike

[seb1899]

Ford dealer here in Cary said to use the Ford Synthetic Blend 5-20

[38Chevy454]

Originally Posted by seb1899

Ford dealer here in Cary said to use the Ford Synthetic Blend 5-20

That is because it is Motorcraft brand, and it is a synthetic blend. Better than straight conventional, but not a full synthetic either. It is good oil, use it if you want. If doing the oil change yourself, Wal Mart sells the Motorcraft 5W-20 cheaper than anywhere else.

I have used that Motorcraft 5W-20 blend in my wife's Ford Edge for many changes, it has been fine.

[mojoracing]

I have switched over to mobil 1 on just about everything I own. I still change at 3000 miles which I know is excessive and probably a wast of money but It makes me feel confident that everything will last and stay in tip top condition. You can't put a price tag on piece of mind. The key with the ford is to run the 5w-20. The tolerances are much tighter than they use to be, you don't want to move up to a higher viscosity.