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1991 Lexus LS 400
Problem for Lexus 1991 LS 400

Do all Lexus series cars require premium fuel




By kingengin on Oct 28, 2009

" "
Do all Lexus series cars require premium fuel
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Solution #1

posted on Oct 28, 2009
Not Rated)

Allrotor13b
Allrotor13b

Rank: Guru  Cars  Expert
Rating: 89%, 174 votes
Suggest, yes. Require, no. The engine management systems will recognize the symptoms of running lower octane fuel and adjust the program to match. Spark is retarded to accomodate the lower octane fuel's disposition to predetonation. You will lose a little performance, but not much.

i hope this helps
-matthew
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