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VL Commodore

fuel economy

Started by stck3L · 23 June 2004 · 145 replies

Preserved from CalaisTurbo (partial recovery). Original authors and dates are shown; archived members are not current Holdcom accounts.

JuZiArchived member
looks like nearly everyone haz it bad, lol i wouldnt stop trying til yous all get round 500 and ova cos it aint working properly til then
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Holden_ManArchived member
Quote: Originally Posted by VLishes Well I just came back from Geelong, it cost me $10 (92c/l) from the BP station (leaving Geelong, on freeway) to Eltham which I think is too much, by the way wtf is it with Geelong, I was trying to buy some Wild Turkey and Cola around 9:30 and every bottle shop (2) was closed! I got Kicked out of a Bottle shop in Ocean Grove for having my sister with me who is 17. I'm 22 by the way! Work that one out?
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VLishesArchived member
Quote: Originally Posted by Holden_Man I got Kicked out of a Bottle shop in Ocean Grove for having my sister with me who is 17. I'm 22 by the way! Work that one out? They probably thought you were going to buy her the alcohol and didn't believe your story that she was your sister.
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TREVAArchived member
i just changed my afm over last week and usually use unleaded. I thought what the hell and filled up my last tank with premium and still only got 380kms to my tank WTF!
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nIsMo86Archived member
i tried out testing the ohms today and got the reading 1 and that was it...so i started the car then disconnected afm while running and made no difference to car idling but didnt try revving it and also tried testing afm then and got reading 1...afm is a diff one off mates car aswell so i know it works...weird sh|t...gonna try my other 2 afms ive got lying round
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XR6KLRArchived member
I'm Getting 400 - 450kms outta Highway driving (doin bout 2 grand), with PULP. I thought this was really bad, but it seems that it's not as bad as i thought! Still gunna try the AFM thing.
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JuZiArchived member
still kinda iz a little bad, maybe u guyz jus got 2 many fully sik subbies in ur boot, plus calais somehow weigh 100kg more than execs, so if u need a stupid excuse to stop ur worrying just blame your car's weight, lol
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JuZiArchived member
duz n e 1 get different results from different petrol joints? i've been told safeway plus petrol iz bad, they recieve the same as shell but i reckon they dont take care of it well. Also i've been told bp ultimate is the best, followed by shell optimax (thats what i use), shell works gr8 for me, but then again it might just be the car that works gr8, lol
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vlt-dreamerArchived member
fcuk yes! mobil synergy 8000 is the way to go - definately the best.
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JuZiArchived member
r u sure? i neva heard a word about that stuff, oh well i guess thats on my list too now, lol, i use shell cos i get petrol vouchers, yesssssssss, 4 cents off!
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Lazza78Archived member
i checked my AFM the other day and the readin was 386.... thats spot on right ??
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VLishesArchived member
I always use to get Mobil fuel but they are crap now, I find it that my VL goes better with Ampol-7/11 fuel shame with Shell.
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TREVAArchived member
Quote: Originally Posted by Lazza78 i checked my AFM the other day and the readin was 386.... thats spot on right ?? yep Some original photos have not been recovered yet.
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Miz_VL_TurboArchived member
BP Ultimate is better than Shell Optimax imo, haven't tried synergy yet.
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RB30DEVLArchived member
Have any of you checked your injectors for leakage? You could have at least a couple which leak,the last time my VL got that economy was when the injectors leaked,washed the oil off the bores and wore the motor out,I was getting around 250 - 300 kms per tank. When it was all in good nick I got 8.5L/100 kms (in manual form) with a combined city/highway cycle,this new motor I have now (twin cam N/A) gets the best of 10.5L/100 kms and has a fair bit more tow in the mid to upper RPM reaches using the RB25 ECU than the old motor,I can go up an incline under load in 5th an accelerate whereas before I would have to shift back a cog,it runs as smooth as hell too. With this motor I have no AFM to adjust as the computer does it all in closed loop mode via the 02 sensor,the worst economy I have ever got out of it was 12L/100 kms which involved a lot of stop/start driving. I would expect it to use more fuel than a single cam motor as it pulls more like a standard to lightly boosted VLT. If replacing injectors,I heard they are sold under the fuel miser banner,I have had bad experiences with second hand units and found it better getting new ones (unless you are lucky to get low km units).
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CalaisRidaArchived member
Quote: Originally Posted by Miz_VL_Turbo BP Ultimate is better than Shell Optimax imo, haven't tried synergy yet. I seem to hear that alot. I ran my car on Ultimate once and it started farting and backfiring. Purrs like a kitten on Optimax tho. Meeeh! Some original photos have not been recovered yet.
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coastvlArchived member
I always use BP Ultimate or if it's not available I'll use Optimax. On a recent trip to Melbourne from the Gold Coast, I got 550-600k's to a tank. Running 22 degrees advanced timing and 2.5 " exhaust. The auto sh1t itself in Vic but other than that it ran like a freight train 6 hrs a day. Now I got a r00ted bearing so a rebuild is on the cards. We'll see what happens then. Was getting 123rwhp(90ish rwkw) without extractors which are now on and the stuffed auto.
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vldude'03Archived member
Quote: Originally Posted by RB30DEVL RB25 ECU than the old motor, With this motor I have no AFM to adjust as the computer does it all in closed loop mode via the 02 sensor,the worst economy I have ever got out of it was 12L/100 kms which involved a lot of stop/start driving. how much is the computer and would it fit on standard vl na motor??? also how much is it for NEW Injectors EACH????
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chrizArchived member
somebody told me safeway+ used to get their fuel from some place in indonesia and some australian commission gave them 3rs or something to find a new source because of the poor quality, this was a while ago. duno if it's true though
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vlt-dreamerArchived member
my na seems to run off and on 5 cylinders ppl, what do you think it could be - it affects economy - spark maybe?
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