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1994 Nissan Skyline R33 Non Turbo, How Are They On Fuel?

zoomzeline

By zoomzeline,
in General Maintenance

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mad082 Grand Master

mad082

Posted
Posted

fuel tank is about 65L, best to use premium fuel, but not a must. as for fuel economy, as with every car it really depends on how you drive. if you like flooring it everywhere then you will get noticably worse economy than someone who drives like a granny

  • 2 weeks later...
jjman Mentor

jjman

Posted
Posted

yeah, hence not being fussed about replacing the O2 sensor. I just have that feeling that I should be getting a bit better efficiency from a 2.5 litre 6... But maybe im just getting more and more upset at the increasing cost ($) to do said 100km- aka fuel prices

:P

i think that if your o2 sensor was bad you'd be getting worse than 12L/100kms of "brisk city driving"
mad082 Grand Master

mad082

Posted
Posted

it really comes down to how you are driving. if you are flooring it a fair bit then you will get poor fuel economy, even in something like a skyline with a relatively small engine. they aren't exactly tuned to be economical either. they are tuned to be a bit sportier, so that means that even driving like a granny you would use more fuel than some other 2.5L engines out there.

mad082 Grand Master

mad082

Posted
Posted

i was getting much worse economy than you in my r33 gts-t. i was up around 17L/100kms. on a long trip on the higway it was down around 10 or 11/100kms. new o2 sensor made no difference because it was down to my driving style. the o2 sensor has no effect on how rich the car runs when you floor it. the ecu ignores it once you get into higher load cells on the map. this can be as low as about 40% throttle depending on rpm, etc. the o2 sensor is only used in light throttle applications, so light acceleration and cruising along at a steady speed.

before you go out and buy a new o2 sensor you would be best off just testing your current one with a multimeter to see if it is working properly.

sydking Veteran

sydking

Posted
Posted

il whack in about $50 so half a tank aprox, will last me about 250 k's, but its all driving style. i try and change around 3k rpm but its not always the case haha, and i do alot of stop start driving aswell which dosent help.

jjman Mentor

jjman

Posted
Posted

after getting the new tuned ecu in and boost controller retuned I found that i was in the 20L/100km bracket for 'very spirited' driving. New O2 sensor goes in this week...

Laid waste to an EVO so it was all worth it :3some:

also girlfriend screaming real loud and grabbing the jesus bar and the roof under full acceleration. LMFAO

  • 1 month later...
jjman Mentor

jjman

Posted
Posted

Have put in the new NGK O2 sensor, sealed up the filler cap leak so now have an airtight seal on the petrol tank,

also put on a turbo-back exhaust and done a further tune and now down to 12.5L per 100km for brisk city driving.

Stoked.

Ill flush with injector cleaner and do a final tune and hopefully under 12L...

after getting the new tuned ecu in and boost controller retuned I found that i was in the 20L/100km bracket for 'very spirited' driving. New O2 sensor goes in this week...

Laid waste to an EVO so it was all worth it :)

also girlfriend screaming real loud and grabbing the jesus bar and the roof under full acceleration. LMFAO

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