higgins21 Member 2 Member For: 12y 18d Posted 02/11/12 12:55 PM Share Posted 02/11/12 12:55 PM hi everyone I have a ba xr6 turbo and I use 98 octane and for the ast month or so my fuel computer have gone from about 550km to 400 a tank. how can I fix this and should I be worried? ps. I have already reset the meter Link to comment Share on other sites More sharing options...
2012 XR6 Turbo MkII Member 11 Member For: 12y 1m 8d Gender: Male Posted 06/11/12 04:23 PM Share Posted 06/11/12 04:23 PM guys/gals, dont use ANYTHING less than 98, it may cost more but I am doing like 12's in town and giving it, it saves you money, heaps more power, less fuel consumption, less stress on the motor, I can cruise at 9.2 for a turbo that hits 100kmh in near 5.5 secs that is amazing for fuel....A car is your second biggest investment. don't buy cheap fuel......... cause at the end of the day, less performance makes more fuel.... Link to comment Share on other sites More sharing options...
2012 XR6 Turbo MkII Member 11 Member For: 12y 1m 8d Gender: Male Posted 06/11/12 04:26 PM Share Posted 06/11/12 04:26 PM oh and I noticed that if the fuel tank is full.....less mileage..KEEP IT AT 3/4 TANK AND YOU WILL FIND YOU ARE PULL A HELL OF A LOT OF LESS WEIGHT,,NICE HINT FOR YOU ALL Link to comment Share on other sites More sharing options...
Goliath Member 383 Member For: 14y 4m 5d Gender: Male Location: Sydney Posted 07/11/12 01:00 AM Share Posted 07/11/12 01:00 AM My fuel usage is horrendous. Currently sitting at 19L/100, but generally around 20-21L/100. Car is mainly driven to work and back in peak hour traffic, but the way I drive I don't think it should be that high. It has come down slightly since being tuned. Luckily I only have to fill up once a fortnight as I don't clock to many km's.Anything I should check/replace to help with this? o2 sensor? Link to comment Share on other sites More sharing options...
jimmixr Donating Members 686 Member For: 14y 3m 1d Posted 07/11/12 01:51 AM Share Posted 07/11/12 01:51 AM My fuel usage is horrendous. Currently sitting at 19L/100, but generally around 20-21L/100. Car is mainly driven to work and back in peak hour traffic, but the way I drive I don't think it should be that high. It has come down slightly since being tuned. Luckily I only have to fill up once a fortnight as I don't clock to many km's.Anything I should check/replace to help with this? o2 sensor?Once tuned I wouldnt be relying on the read out. Its all changed. The fuel usage is measured from a constant.. that is.. the injector being the original sized factory unit. If you change it it will be flowing more but the ECU is still trying to work out the fuel used going off the original injector. They work it out using the pulse width and so on.Pre-tune my FG was averaging 10.5-12.. mix city/hwy and the odd squirtPost tune with 1000,s its sitting on 13.8-14.5.Doing a full tank to KM comparison doesnt reflect the increased usage its telling me. And rightly so.. a good tune shouldnt give u a higher fuel usage. That is if it isnt running the correct AFR's on and off boost Link to comment Share on other sites More sharing options...
Bellato Donating Members 2,713 Member For: 14y 1m 1d Posted 07/11/12 02:04 AM Share Posted 07/11/12 02:04 AM Exactly what Jimmi said! Don't use the trip computer and actually see how many kms you get out of how many litres of fuel and work it out manually. I found mine was quite off. Also discount your battery and it will reset your trip. When I did this it reset to almost spot on to what I was actually getting Link to comment Share on other sites More sharing options...
Goliath Member 383 Member For: 14y 4m 5d Gender: Male Location: Sydney Posted 07/11/12 03:03 AM Share Posted 07/11/12 03:03 AM (edited) I'll do that next time and see how it compares to the car read out. From memory it seems to be getting similar km and litres when filling up, hopefully my memory is wrong haha. Edited 07/11/12 03:04 AM by Goliath Link to comment Share on other sites More sharing options...
tab Sucker Moderating Team 32,303 Member For: 20y 6m 26d Gender: Male Location: Brisbane Posted 07/11/12 03:23 AM Share Posted 07/11/12 03:23 AM oh and I noticed that if the fuel tank is full.....less mileage..KEEP IT AT 3/4 TANK AND YOU WILL FIND YOU ARE PULL A HELL OF A LOT OF LESS WEIGHT,,NICE HINT FOR YOU ALLWhy not 1/4 of a tank? That'd be three times better. Link to comment Share on other sites More sharing options...
dasmq Member 14 Member For: 12y 26d Gender: Male Location: Kurrajong heights Posted 24/11/12 10:18 AM Share Posted 24/11/12 10:18 AM I have an EF s1 with a cam 5 speed conversion extractors it get 750 to 800 kms per tank to and from work (Bipin to Nort Richmond nsw) just bought a BA Mk 2 Turbo Shockwave being repainted at the moment it gets 500 to 550kms per tank but the BA tank is smaller than the EF. Link to comment Share on other sites More sharing options...
6auto Member 6 Member For: 12y 2m 26d Gender: Male Location: QLD Posted 29/11/12 01:18 AM Share Posted 29/11/12 01:18 AM Average high 12 to low 13 in town, best was 8.5 on a trip, with 280 rwkw pretty happy with that. Link to comment Share on other sites More sharing options...
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