Hey Guys,

I decided it might be better to use 98RON on mine(GQ RB30 carby, dual fuel).

I thought ignition timing compromise between LPG and petrol can be set to a better minimum
with LPG being higher octane than regular 91RON petrol.

Is this a good idea?

If so, do I need any "upper cylinder lubricant" or is it just an old wive's tale?

Mine is a 1990 model GQ.

Thanx