LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Oil oil and more oil!

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Old 04-08-18, 01:15 PM
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kambam3627
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Default Oil oil and more oil!


My car leaks oil so bad that If I was running from the police they would find me based off the lines of drips I leave 😂 anyways, I have to put 2 of those small bottles of oil in every 1-2 thousand miles I drive that’s how bad it is, the oil leaks so bad that it starts steaming from the engine from the heat, worth fixing or time to dump the car entirely??? Thoughts?
Old 04-08-18, 01:44 PM
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python
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small bottles?u mean quarts? oil doesnt steam..it smokes..clean underneath then look under there while its running. not like we can diagnose an oil leak on a forum
Old 04-08-18, 01:55 PM
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kambam3627
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Yes haha the word quart was slipping my mind for some reason 🤣 and I did that, it was more an opinion over
a visual inspection
Old 04-08-18, 03:53 PM
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Losiracer2
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Its not worth it if you're looking to sell it and make money. Its worth it if you want a good reliable car to drive in.

Find out where the leak is coming from and decide if you want to keep the car or not.
Old 04-08-18, 06:33 PM
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sha4000
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Most likely the crankshaft seal.
Old 04-09-18, 01:13 AM
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I can tell by google images this will not be easy to get to, I’ll try. Thanks for suggesting that
Old 04-09-18, 06:56 AM
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Scraape
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your valve cover(s) could be leaking onto your exhaust manfiold, causing it to smoke. You need to find where it's leaking from.

Put some uv dye in your oil and use a blacklight at night to look for the leak
Old 04-09-18, 08:49 AM
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Most likely it's the valve covers like Scraape said. I bet it's leaking there. Here's what you can do: Valve covers' torque specs is between 50-55 in-lbs so get a torque driver, set it at 55 in-lbs then go over all the bolts in a circular pattern. Next clean all the oil w/ engine cleaner then keep an eye on it for a few days. Increase torque to 60 but no more than 65 in-lbs if it's still leaking. Your leaking could also be from the rear main seal. If so, then it's a major job as you'll need to drop the tranny in order to get to it.
Old 04-09-18, 10:02 AM
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I bet it's the crankshaft front seal as well, and/or the power steering as well. very common, and not an easy seal to get to (timing belt has to be removed) for the crankshaft seal.
$500-700 in labor to get it done.
Old 04-09-18, 10:08 AM
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Htony
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Originally Posted by kambam3627
Yes haha the word quart was slipping my mind for some reason �� and I did that, it was more an opinion over
a visual inspection
Maybe using more oil than gasoline?, LOL! Did not mention what car and how old it is. All cars in my family does not even have a
dip stick. When oil level is low it supposes to show reminder on the dash but never saw that between 6000 mile oil change intervals.

Last edited by Htony; 04-09-18 at 10:11 AM.
Old 04-09-18, 04:57 PM
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It looks like the lower gaskets and the seals, I’m gonna replace them when I find out where to get the parts
Old 04-09-18, 05:18 PM
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Originally Posted by kambam3627
It looks like the lower gaskets and the seals, I’m gonna replace them when I find out where to get the parts
Is it the oil pan gasket? That's too much oil to be the valve covers IMO even though it's a slight possibility. When my crankshaft seal went I was loosing lots of oil when I turned the car off. I dealt with that for over a year until I did the timing belt.
Old 04-09-18, 05:22 PM
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it seems fine, im gonna get a real mechanics opinon an quote and see if he will tell me the location then just do it myself.
Old 04-09-18, 05:32 PM
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My first guess is the valve covers. The whole deal with them is just not a good design. Sorry to all that don't like to hear that.
Also end plugs can come out as well.
Old 04-09-18, 09:17 PM
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My VC gaskets are original and still at 290k, they're only seeping. I see a wetness around the covers but no actual leak on the ground. My crankshaft seal failed back in 11/15 at 255k, causing a pretty big mess on the floor like what you see in your photo. If you postpone it too long, you'll be looking at a TB job at the very minimum.

Take the cover off and see if your belt is coated in oil. If it is, then plan to do the TB/WP service along with the camshaft and crankshaft seals.


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