Mystic oil
 

Amy body ever use mystic oil? Been thinking about running it in my 350

Re: Mystic oil
 

have'nt used mystic for cars, but i did buy some synthetic mystic for our quads last yr though. first time, usually use amsoil, but they did'nt have enough (11 liters, 3 quads). just changed the oil couple weeks ago, no difference after 1 season, might use it again, half the price of amsoil.....

Re: Mystic oil
 

The only additive I used with some success was BG 44K. You can buy it on Ebay now. It helped both the old BB and my 2.2L Cavalier run smoother. No improvement in fuel economy though - just a lot smoother idle.