Does anybody know if it is ok to use JB engine tune-up with Mobil 1 0W-40? I talked to Mobil Oil and they said they don't recommend using any oil additive with their products. I just wanted to check with you guys first and see if any one has tried this or had any problems.

Thanks

 

i use M1 0W-40 and it works great. Never with any additives. U might want to try talking to guys at pep boys or auto zone or any other auto parts store by u.

 

I talked to Justice Brothers and they said it works perfectly well with synthetic oil. But Mobil oil says they don't suggest the use of oil additives with Mobil 1. I just don't want to be the guinea pig and have to get an engine rebuilt, but I also don't want to waste the $7.00 I paid for the JB Engine Tune-up either.

 

I wouldnt take JB's word on it since they probably would say anything to get you to buy their product

 

I used JBros. Got rid of a lot of my lifter noise.
I didnt use it every oil change though