1. Cars home
  2. Fuel & economy

Ask an expert

campmother2002
By campmother2002 | AA Member | 1 Post | 11 August 2011 at 3:32pm

I have a 1985 Mitsubishi L200 Sport 2000 Ute - Petrol. On Petrol flap it states Premium Grade - what should I be using...91, 95 or 98 Octane?

jbiddle
By jbiddle | Community Member | 1657 Posts | 12 August 2011 at 9:32am

If the petrol flap states premium then 95 octane will be fine. The lower 91 octane is the one to avoid probably due a high engine compression ratio which cannot tolerate this fuel for long periods.

The higher 98 octane can also be added however, why pay more for your fuel than you need to with no real benefits.