BB, how long have you been running synthetic? It seemed when I ran synthetic, I had more leaks. After switching back to Rotella, no more leaks.

 

I honestly don't remember how long I've been running it. It's been at least a year.

 

I'm going to try synthetic again, but I'm going to go 15-40 instead of 5-40 like before. I've improved some things on the truck now as well so I might have better luck with the syn this go round.

None the less it did leak more with the syn than the Rotella. BTW, I was running a Mobil One.