WHAT TYPE OF OIL??

soonercruiser said

I use Mobile 1 in all my other MOPARS.
Is synthetic OK to use in my old 318??

Click to expand...

It will work fine, BUT it may show up leaks a bit more than dino oil simply because the synthetic flows so much better. It won't "cause" a leak. It just may "leak a little more" where small leaks may already exist.