t-one234 Posted April 30, 2011 Share Posted April 30, 2011 took my NA supra for a 30 mile drive and it included duel carridgeways, rural roads and town driving now i drive to the speed limits and i dont drive in a spirited way very often but it used 3 bars on the fuel guage to get there? surely this isnt right i know its a 3ltr and everything, but it seems a bit excessive fella at the garage seems to think a good service and cleaning the lamba sensors will help anything else i can try or does that much usage seem correct? Quote Link to comment Share on other sites More sharing options...
stevie_b Posted April 30, 2011 Share Posted April 30, 2011 (edited) "3 bars" is a bit vague. Petrol gauges are notoriously non-linear. 3 bars near the "full" end of the gauge will get you a lot further than 3 bars near the empty end. But, if it is thirsty then new O2 (lambda) sensors should help a lot. Edited May 1, 2011 by stevie_b (see edit history) Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted April 30, 2011 Share Posted April 30, 2011 "3 bars" is a bit vague. Petrol gauges are notoriously non-linear. But, if it is thirsty then new O2 (lambda) sensors should help a lot. threw me that bit. "3 bars"? ah takes me back to my astra gte days!!! Quote Link to comment Share on other sites More sharing options...
Stewart10 Posted April 30, 2011 Share Posted April 30, 2011 Sounds about right but it'll vary depending if you were on a slope when you first looked at the dial or not Quote Link to comment Share on other sites More sharing options...
Nic Posted May 1, 2011 Share Posted May 1, 2011 When were the oxygen sensors last renewed? They should be changed every 30-50K miles. If the sensors are worn out the ECU will default to a rich mixture which has a significant effect on fuel consumption - and a small but noticeable effect on performance. New sensors are not cheap but they should pay for themselves in fuel savings quite quickly. A full service will also help get the best out of the car. Quote Link to comment Share on other sites More sharing options...
t-one234 Posted May 1, 2011 Author Share Posted May 1, 2011 cheers for that answer Nic, i dont think they have ever been changed and its getting on for nearly 78k now somebody did tell me it was smelling rich when i started it up and they were about a meter behind the car i will look into getting them changed asap thanks fella Quote Link to comment Share on other sites More sharing options...
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