luvlexy Posted July 30, 2016 Share Posted July 30, 2016 What weight synthetic oil 2004 LS430 with 146,000 very well maintained. Northern IL vicinity. Quote Link to comment Share on other sites More sharing options...
2ton Posted July 31, 2016 Share Posted July 31, 2016 I use 10/40 summer, 5/30 winter. Frequent oil & filter changes is probably more important than weight, however. My '04 LS430 has oil & filter changes every 3,000 miles, Mobil One synthetic, and runs great after 235,000 miles. Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted July 31, 2016 Share Posted July 31, 2016 The correct oil weight is 5W30 year-round. It is never necessary to use any other weight. Quote Link to comment Share on other sites More sharing options...
imgreg7 Posted August 1, 2016 Share Posted August 1, 2016 Any good brand of 5w30 oil and then follow the 5k oil change interval. Quote Link to comment Share on other sites More sharing options...
Bmore430 Posted November 15, 2016 Share Posted November 15, 2016 I use royal purple 5w30 with Motorcraft fl400s oversized filter. you can go to 8k to 10k mile intervals with a quality filter and full synthetic. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.