THOSE WHO USE MOBIL ONE SYN for your SER's

[Jon Davis]

Take regular samples, maybe every 1k miles and send them to be tested....
have the lab tell you when you need to change it. Blackstone Labs sends a
free sample kit. You might be able to change every 15k, but at least you'll
have the data to back yourself up. Anything else is just a stab in the dark.

Jon Davis

> when is a good
> time to change your oil if your using Mobil One Syn. Mobil says every