The Pir@te Posted September 25, 2007 Share Posted September 25, 2007 Hello to every lexusER.. I noticed recently an oil leak under my car.. I tried to follow it up and I took this picture.. what can it be. ** It started when I changed the oil from the AC Delco 3000K to the new 7000k; does it matter. Car is doing now 275k+ 91 model. Appreciate any help.. Thanks Quote Link to comment Share on other sites More sharing options...
etex Posted September 25, 2007 Share Posted September 25, 2007 With the recent service, it sounds likely that something wasn't tightened properly. Get under there and check the fuel filter and the oil pan plug. Be sure you have a good washer under the plug. Look around them carefelly at their seat and see if there is any leakage apparent. Quote Link to comment Share on other sites More sharing options...
ko90ls Posted September 25, 2007 Share Posted September 25, 2007 it may be your rear main seal. the fix is on lexls.com but it involves dropping the tranny. I need this done also. very minor in terms of leak volume. Quote Link to comment Share on other sites More sharing options...
17LexusOwner Posted September 26, 2007 Share Posted September 26, 2007 I have a '91 LS also and have noticed an oil leak. Mine is on the top of the engine though and is because of a bad valve cover seal. It makes it smoke sometimes out of the hood and burning oil smell after shut off. It also leaks out of the bottom. Check and see if that is your problem, otherwise I would go with the fact that you probably have a loose oil plug or filter. I work in a shop and I know that when we're in a rush, sometimes those plugs don't get tightened completely. Hope that helps. Quote Link to comment Share on other sites More sharing options...
cardona6569 Posted September 28, 2007 Share Posted September 28, 2007 After you check all that, wipe it clean, may just be residual oil when they did the change, if so, it should dry up quick. The other friend that has a valve cover leak, try tightening evenly in a cross pattern the valve cover it might work, it has for mine and adding a little no leak oil sealant makes wonders for seals. CPR Quote Link to comment Share on other sites More sharing options...
The Pir@te Posted September 29, 2007 Author Share Posted September 29, 2007 Thnx Guys... Appreciate your help Quote Link to comment Share on other sites More sharing options...
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