ihateduke Posted March 7, 2010 Share Posted March 7, 2010 My wife just got a 2010 IS250 RWD. I was curious if there were engine mods that I could do to improve gas mileage? I'm assuming that switching to synthetic oil may help. What about a new air intake? Upgraded computer chip? Anything else? Quote Link to comment Share on other sites More sharing options...
dislexicisnaf Posted March 8, 2010 Share Posted March 8, 2010 Drive REALLY slowly? Quote Link to comment Share on other sites More sharing options...
mr_raider Posted March 10, 2010 Share Posted March 10, 2010 Drive in winter mode! Quote Link to comment Share on other sites More sharing options...
Sidney07 Posted March 10, 2010 Share Posted March 10, 2010 driving habits will do more than any mod you can do to the car. Common sense...starts and stops...slowly, conservatively. Keep tire pressure up, but with tpms, thats easy. Maybe a K&N filter. But really, the way you drive will do way more than any "mod". FWIW, our 09 IS 250 AWD consistently gets 27 to 29, with more on a trip...they really can be very economical cars!!! Quote Link to comment Share on other sites More sharing options...
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