Quote:
Originally Posted by 1996 328ti  Honestly, I'd go with 89 octane and see what happens.
When I had a 4-banger my mileage went down when I used higher octane fuel.
Although, 19 is low. |
I used mid grade on my 96 back when I had the M44.
However, I've known some folks to put 91+ octane in a 1993 Geo Prism, that was news to me