View Full Version : General fuel saving tips/ how many kms are u doing?
tezza88
30th July 2010, 10:20 PM
Hey 86DCers
just wondering how many KMs are you guys doing with a full tank of 98 without ripping it too hard.
I basicaly done a full service except fuel filter (this weekend for sure) and im only doing 320km tops
Car: 86' AE86
Engine: JDM 4AGE
How do i drive? mainly larger roads (for sydneysiders: hume hwy+ M5)
KMs/tank/petrol: 320km- BP98OCT
for a 1.6L thats pretty shithouse. Let me know and any tips on how to save abit of petrol would be helpful (daily car)
benno93
30th July 2010, 10:31 PM
Car: 84 ae71
Engine: 4ac
How do i drive? sutherland shire. lots of stop start.
KMs/tank/petrol: ~300 on regular unleaded
i flog the shit out of the 4ac most of the time so maby thats why its so low.
no idea when last service was either
--Redwork--
30th July 2010, 10:36 PM
Holly shit you guys get terrible milage..
I get 400k's EVERY TANK... no matter weather I'm driving threw the city every day or running up and down the highways.
With a gungy slow 4ac..
Hachi_Tom
30th July 2010, 10:47 PM
i have no idea how much on a full tank but i get around 9l /100km thats medium to hard driving.
How much will a adm tank hold?
and with a jap 4a-ge do i need to use that valve saver fluid stuff? "makes it safe to run unleaded petrol in leaded engines" or wateva it says on the bottle???
ive only had it for like 7 months and the old owner just had it in the car so :/
Sam-Q
31st July 2010, 01:23 AM
I get 8.5L/100 usually in traffic and down to
Car: aussie ae86- my adm tank is 40L- no arguments
Engine: lightly modded 20v with Wolf
How do i drive? stop and start and some short crusing in traffic
KMs/tank/petrol: I get 8.5L/100 usually but when I drove to Winton it went to 6L/100 or 670km/tank. I think I have a lot more in it with some tuning which I will do.
ae71
31st July 2010, 01:41 AM
tezza, either you drive on the high way in second gear, have a fuel leak or your engine is not performing as it should.
i was getting 650km from my 4ac with exhaust and carb. conservative highway driving
tezza88
31st July 2010, 10:58 AM
sweet, thanks guysz, at will be heading to the mech and let him sort it out then!!
once again, super helpful :D
but keep posting your kms!!
Jip86
31st July 2010, 12:48 PM
my old car,
Car: 85 jdm 86
Engine: 4age
How do i drive? half highway half town, changed around 3 to 3.5k with the occasional run to redline
KMs/tank/petrol: 400km/ 32 litres of 98 with in a litre everytime. it was 6.6l/hundred kms on the way up from bris in the highway
current car, 450km/65 litres. hmmm these v8's are thirsty things
Andy San
31st July 2010, 12:54 PM
my old car,
Car: 85 jdm 86
Engine: 4age
How do i drive? half highway half town, changed around 3 to 3.5k with the occasional run to redline
KMs/tank/petrol: 400km/ 32 litres of 98 with in a litre everytime. it was 6.6l/hundred kms on the way up from bris in the highway
current car, 450km/65 litres. hmmm these v8's are thirsty things
you think v8's are bad, you should get a gq patrol... 450km out of 130 litres... works out to about 32L per 100kms :(
ke70dave
31st July 2010, 01:08 PM
far out how do you guys put up with this fuel milage?
if i dont get 10L/100km i start ripping my car appart trying to find the problem.
i usually get around 8L/100 with standard driving. bit of highway, bit of suburban. (stocko bigport 4age)
not driving like a grandma, but not driving like peter brock either. rev it here and there, but in general fairly sedate.
howeever if i hit up mt nebo, full throttle up hills kills it, but prolly no worse than 11-12L/100.
forget any valve saver stuff for any of these engines, just bung in standard unleaded and youll be fine, i find 98octane i get good milage.
even 95 is fine, just dont run ethanol.
slide86
31st July 2010, 01:18 PM
here is one for you:
car: jzx100
eng: vvti 1jz no shit........blitz air filter, full 3 inch exhaust (no cat), stock boost 10psi and auto trans
driven to and from work (22kms each way, all 80 zone, barely come on boost on the way to work in the mornings)
http://www.ae86drivingclub.com.au/dcimages/5/50042.jpg
that was full to the brim, i got 59 litres of BP ultimate in there and got 517kms out of it
ke70dave
31st July 2010, 01:31 PM
geez thats not bad at all mate.
and your getting a heap more bang for you buck (litterally!) than my 4age gives me
how does it go with enthusiastic driving though? not drifting as such, but maybe an enthusiastic hills drive.
tezza88
31st July 2010, 01:32 PM
far out how do you guys put up with this fuel milage?
if i dont get 10L/100km i start ripping my car appart trying to find the problem.
i usually get around 8L/100 with standard driving. bit of highway, bit of suburban. (stocko bigport 4age)
not driving like a grandma, but not driving like peter brock either. rev it here and there, but in general fairly sedate.
howeever if i hit up mt nebo, full throttle up hills kills it, but prolly no worse than 11-12L/100.
forget any valve saver stuff for any of these engines, just bung in standard unleaded and youll be fine, i find 98octane i get good milage.
even 95 is fine, just dont run ethanol.
ahah not bad at all mate. i'd be happy if it did 450km/tank half highway half suburban
mines stocko +exhaust and could be my crummy pod i need to change.
well its going into the mech to see if the lines are leaking or what not tomorrow and check my timing (which sounds fine by human ears)
but for now, cityrail is the go
ke70dave
31st July 2010, 01:54 PM
time to do a systems diagnostics
with the fuel usage your getting, id guess a sensor is stuff.
the water temp sender went on my car a few yrs back, ran uber rich.
btw how many Litres is a full tank of fuel?
Andy San
31st July 2010, 01:58 PM
here is one for you:
car: jzx100
eng: vvti 1jz no shit........blitz air filter, full 3 inch exhaust (no cat), stock boost 10psi and auto trans
driven to and from work (22kms each way, all 80 zone, barely come on boost on the way to work in the mornings)
http://www.ae86drivingclub.com.au/dcimages/5/50042.jpg
that was full to the brim, i got 59 litres of BP ultimate in there and got 517kms out of it
that's pretty damn good, ever towed anything with it? thinking about getting one as a daily
Frak
31st July 2010, 02:10 PM
My daily is an AE111 5 speed
daily driving to work I get 7.2-7.4ltr/100km (doesn't matter if I thrash or cruise, it gets about the same)
if I do a bit of highway driving it drops into the low 6.0's/100km and if I do alot of highway driving(sitting on 110km/h) I can get it into the high 5.0'sltr/100km EASY.
I find if I run Shell V-Power it gets slightly better fuel economy than BP Ulitimate.
I once had an RGV250 that could empty 17litres of pulp in 115km :(
I also had a Peripheral ported 13B RX3, when it was on a weber carb(later Autronic efi) and revving it out(10,700rpm) it would get about 65ltr/100km :crying:
slide86
31st July 2010, 02:30 PM
we have talked extensively on jzx100.com bout towing with em..........id say 85% of people dont recommend it. but then again, there are a few pics floating around of guys with a 6x4 towing a few motos.
i wouldnt tow much more tho, i dont think the chassis in the rear is designed for it
Skylar
31st July 2010, 02:34 PM
I bought an FC. It was so terrible on fuel (~15-16l/100 never boosting it and worse on boost) compared to my corolla (4age: ~8l/100) that I sold it. Now I have a SR silvia (~9l/100).
dove grey 64
18th September 2010, 11:08 AM
sorry to bump up an old thread, my 4ac is getting around 300km-350 k's on a 50L tank of bp98, i do live in a hilly area of the dandenongs but i dont thrash it, i was expecting the fuel economy to be a bit better then my forester gt...
sound like i need a tune up? i'm pretty sure i need to adjust the tappets but everything else is good like timing, full sevice done less then a week ago incl air filter and plugs
spiderman
18th September 2010, 11:46 AM
Car: 81 Scorpion
Engine: 4G54, 63rwkw
Diff ratio: 3.308:1
How do i drive? ~ 50/50 cruising on country roads @ around 140 and country town traffic, with the occasional "tuff lap" of the main street when I'm bored :P
KMs/tank/petrol: Best I've got was 427km out of 60l using BP95. It needs a tune though.
Car: 89 Magna
Engine: 4G54B, 101fwkw(94 Magna)
Diff ratio: 4.01:1
How do i drive? Thrashed it :P City driving around Canberra
KMs/tank/petrol: 520km/60l/BP91
Apparently well-tuned EFI 4G54 pwns out of tune carby 4G54 in both power AND economy. Pwns a stock 20v too...................................
claw
23rd September 2010, 11:23 AM
i got between 430 and 470 per tank depending on how much windy roads were around with my 4ac, now with the 4age, if i got on a run in the hills for a few hours im still getting 350+ per tank, strill running standard 44l corolla tank
KE70
23rd September 2010, 11:55 AM
9-10L\100kms, thats a mixure of cruising and thrashing round town.
ke70 4age bigport JDM ECU running 98.
tezza88
28th September 2010, 12:29 PM
i had a chat to the mechanic and he did a system check and a timing check to why its burning so much, everything seems to be working fine and he told me to get the injectors reconditioned/cleaned up for about 10bux at the local spare parts store.
Havent done so yet but will be doing it soon
hope it boosts my mileage from 320km/tank (bigport 4AGE) to somewhere near 400-450
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