Poor fuel economy on a Lexus IS - any ideas? | Ask Honest John

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Poor fuel economy on a Lexus IS - any ideas?

Just bought a Lexus IS220d and I'm very dissapointed with the mpg, I'm only getting 24 mpg, but the official Lexus site says 35 mpg urban 55 extra urban 45 combined. What could be the problem?

Asked on 31 May 2012 by polskif

Answered by Honest John

First and easiest thing, dirty air filter. Next, injectors. Try some injector cleaner in the tank. Next, oxidising cat converter may be blocked. Expensive. Next new injectors. Very, very expensive.

Tags: fuel economy real mpg owning

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Lexus IS (2005 - 2013)

Very well built. Top quality interior. Lexus dealers are best in the business. Impressive refinement. All engines chain cam. IS250 probably the most reliable car you can buy.