Does 98 Octane petrol improve performance of 4.2 petrol GQ

[Clunk]

I have just got a 4.2 gq and went to cape york.was pulling a trailer and was using 3 kls per litre.Are they usualy this thirsty?

One word....... yep

[Bigcol]

I have just got a 4.2 gq and went to cape york.was pulling a trailer and was using 3 kls per litre.Are they usualy this thirsty?

X2 what Clunky said...........
sounds like something is not quite right - just guessing mind you

[Bigcol]

@Bigcol I ran that new generator mixer on my 650 4 barrel powered chev troopy
Trouble was it only feed gas to the back two barrels , we farted around with and
ended up getting fuel to all 4 barrels, Blew away most 4x4s and was a sheep in
wolfs clothing, I also found having the open air filter a pain in the butt with water
crossing and dust. I have my mates at the airport make a sheild for the front to
protect the air filter from muck, worked a treat.In the end I brought an early Holden
air filter

yeah that pee'd me off as well.......... with the air filter......... no way of making it water proof or dust proof without stuffing it power advantages

[kevin07]

yeh I ran mine on 14 to 15 advance ran perfect fix up a bit of chain stretch as well