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Hey anyone run their older subies on premium???

Just wondering how they perform on premium and if it is worth it every so often?

I only noticed an improvement low down revs, foot to the floor on 98. Never felt seat of the pants improve on just PULP

I run ea81 (91 brumby) on BP ultimate. I know its expensive but the car just runs so well on it and I haven't had to touch the engine save for a brief experiment with E10 (Blah) Car just seems to run well and I'm sure its getting further on a tank but havn't done the science. Have done about 60-70thou on same plugs etc..touched nothing

Used to use 97 or higher on my EA81. Much better performance and it makes up for the extra cost in fuel economy.

Last couple of weeks ive been trying a few different types out of curiosity for my Brumby! Ive always used BP ultimate for my 351 clevland which is apparently the fuel of chioce for many enthiusiasts. BP ult in the brumby i got 430kays off about 44litres, mostly highway with small trips to the shops etc. I then tried Caltex 95ron and get 460 kays doing pretty much exactly the sam trips ie work shops. Im yet to try the caltex 98. Also, i believe the timing and detonation may be an issue, in theory the premium fuels should be better but if the timing isnt appropriate it may affect ignition etc!

PS When my gauge is on empty (Lined up to E) i top up the fuel, usually between 44-46 litres. Anyone know how big the fuel tanks are in brumbys. Be good to know if i could squeeze more kays out seeing as though i fill up quite often. Cheers.

55 litres in the specs and from memory of refills from pushing into servo

I usually fill up from matilda but a mate has suggested i swap tp maybe bp or caltex as they are usually a bit better he reckons. Just put a tank of premium from matilda in but havent used it all yet.

Gees u lads are getting good amount of k's are u carrying many toools each day???

i found a small difference from normal to 95, at low revs doesn't make that annoying creaking/ticking noise, didn't notice anything different between 95 and 98 though.

Gees u lads are getting good amount of k's are u carrying many toools each day???[/QUOTE]

I should clarify this a bit...I bought my 91 EA81 brumby a few years back with 201,000klms on it and it was completely original and in very good condition..

I run it on BP ultimate only and find it runs extremely well on this. If I run it on standard unleaded I find it pings and rattles badly. I realise that this is mostly timing and detonation issues but I'm happy with it on the BP Ultimate so left it at that cos it runs so beaut. I had a small experimentation with E10 probably about 2 years ago and the car just stopped one day dead in the middle of Toowoomba. I removed and stripped the carby and found that the jets had scale (Prob from moisture buildup) on them. Blew it all out, emptied the tank and filters (both) and went back to BP ultimate, no problems since.

The car has the original spark plugs (When I bought it), no timing has been touched, exhaust or anything else. It gets an oil change, renew oil filter (and air cleaner once) . I periodically change the coolant with castrol (small bottle) and that's it.

Just before this thread appeared, I was at the local tip (Probably dumping my tarp) and thought how quiet and smooth it was idling. I've been with it out to Longreach and back from Toowoomba, and out to Windorah towards Birdsville and back. Many times to Brisbane and the Sunshine coast and over to Bundaberg. Also up to Wandowan all playing guitar. It has never stuck me up and as I have said, nothing on the engine has been touched bar basic oil and coolant change.

They are a great little ute. My avatar is changing a wheel between Quilpie and Charleville.

So yes, I carry tools but this brumby just keeps on going..and I'll stay on the BP Ultimate...just turn your back on the bowser and don't watch the dollars go round.

At Windorah loaded with music gear
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Sleeping quarters after engagment gig at Wandowan
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My brumby is well maintained just think maybe you are driving a few more longer distances and my short round town travels do the fuel consumption no good with a shit load of tools in the back. Seems like the BP ultimate is ur choice i might give it a go. Good to see ur in a band.

Thanks mate...no worries...I feel guilty now and will give the little beast a service this weekend!!

Hi
When i had my leo coupe it got 635 kys from a 55 litre tank on 95/98 ron.
I tuned it to run on on PULP and it would run poorly on ULP.

Cheers Pete

I have a 1984 Leone wagon and I only run it on BP Ultimate, I get a bit of extra power and a lot better fuel economy. It also doesn't ping at all, I have advanced the timing so this is important.