Unleaded or Super-Unleaded

[glena]

Can anyone recommend from personal experience which is best for my standard 92 4.3 Griff? Bible states it can be run unmodified on Super-Unleaded, or in some cases de-tuned to run on Premium-Unleaded ?????. No local Shell garage so Optimax is not an option

>>> Edited by glena on Thursday 11th September 13:09