Quote:
Originally posted by Steve M
Having allways used Shell Optimax petrol I watched Fifth Gear last night as they ran a test on various fuels - normal unleaded, BP ultimate, Shell Optimax etc. While it didn't have much effect on engines in a low state of tune, it did make a difference to high performance engines - an Imprezza got something like a 30 bhp gain. |
Steve? Has it made that much difference on the SS? Do you think it really is worth changing?
If it is you might persuade me to think a bit more carefully about fuel rather than just the normal mods that cost you an arm and a leg!