90LS400Lexus Posted March 16, 2004 Share Posted March 16, 2004 I get about 350-400 per tank, on my 90 LS400, with 228K. It varies depending upon how much stop-go city driving and highway driving I do. Quote Link to comment Share on other sites More sharing options...
VBdenny Posted March 16, 2004 Share Posted March 16, 2004 I have read a couple people who said when your throttle body is clogged, your fuel consumption increases dramatically. I've noticed mine is falling off slightly, so I will probably do that job this summer. Might help. Quote Link to comment Share on other sites More sharing options...
93LSOwner Posted March 16, 2004 Share Posted March 16, 2004 As far as the cleaning of the throttle body is concerned, in your opinion when should it be cleaned, at how many miles? Quote Link to comment Share on other sites More sharing options...
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