sandchell Posted June 19, 2017 Share Posted June 19, 2017 What oil should I use for my 97 LexusLS400 with over 200,000 miles ...driving in HOT weather always.... Quote Link to comment Share on other sites More sharing options...
billydpowell Posted June 19, 2017 Share Posted June 19, 2017 when new, 5w30.... after 100k 99 LS400 213k, I now use 10w30...... I'm in Texas. Quote Link to comment Share on other sites More sharing options...
LSPaul Posted June 21, 2017 Share Posted June 21, 2017 I run synthetic 10W-30 in my '94 (230k miles on it at present); I normally use Mobil 1 Extended (and 15k mile change intervals), but 5W-40 Delvac 1 was on sale a while back, and I'm running that at this moment in mine. Paul Quote Link to comment Share on other sites More sharing options...
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