excessive oil sludge
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Driver School Candidate
Joined: Dec 2004
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From: Texas
excessive oil sludge
Doing the valve train adjustment on my 93 LS400 and there is an excessive ammount of oil sludge and coking on the cam caps. I have never seen anything this thick, its roughly 1/8-1/4" thick. Does anyone have insightful knowledge as to what is the best way to remove this? I can't really start the car right now so I can't put anything in the oil.
Also, what causes this? I never use anything except mobil 1 and its changed every 3500 miles so I guess this is all the previous owners fault.
Also, what causes this? I never use anything except mobil 1 and its changed every 3500 miles so I guess this is all the previous owners fault.
Lexus Test Driver
Joined: Jul 2005
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From: il
Originally Posted by UTA LS
Doing the valve train adjustment on my 93 LS400 and there is an excessive ammount of oil sludge and coking on the cam caps. I have never seen anything this thick, its roughly 1/8-1/4" thick. Does anyone have insightful knowledge as to what is the best way to remove this? I can't really start the car right now so I can't put anything in the oil.
Also, what causes this? I never use anything except mobil 1 and its changed every 3500 miles so I guess this is all the previous owners fault.
Also, what causes this? I never use anything except mobil 1 and its changed every 3500 miles so I guess this is all the previous owners fault.
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Lexus Test Driver
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From: il
Originally Posted by Lexmex
I would second Auto-RX.
In Mexico, we use Liqui Moly Engine Flush, but not sure this would work on the sludge you have. Auto-RX is the best option here.
In Mexico, we use Liqui Moly Engine Flush, but not sure this would work on the sludge you have. Auto-RX is the best option here.
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Lexus Test Driver
Joined: Jun 2005
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From: South Bay
Find a reputable shop to do a flush on your engine. Motor is off during the flush. Do it ASAP, then get the valves adjusted.http://www.motorlife.com/ 
P.S Or you can try to find a mobile oil change guy to go to you if you dont want to tow or drive the car. http://www.oilchangeguys.com/
P.S Or you can try to find a mobile oil change guy to go to you if you dont want to tow or drive the car. http://www.oilchangeguys.com/
Last edited by SC400DAVE; Aug 6, 2005 at 10:13 PM.
Lexus Test Driver
Joined: Jul 2005
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From: il
Originally Posted by sonyman
Auto-RX is designed for problematic engines, sludged up engines, and worn engines. It will fill in the gaps in the seals where sludge once was. Read more on their website.
Scott
Scott
thats only a temp fix. eventually it will leak again
Lexus Test Driver
Joined: Jul 2005
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From: il
Originally Posted by SC400DAVE
Find a reputable shop to do a flush on your engine. Motor is off during the flush. Do it ASAP, then get the valves adjusted.http://www.motorlife.com/
P.S Or you can try to find a mobile oil change guy to go to you if you dont want to tow or drive the car. http://www.oilchangeguys.com/
P.S Or you can try to find a mobile oil change guy to go to you if you dont want to tow or drive the car. http://www.oilchangeguys.com/
if u were u guys
go find a qualified tech and ask him ull find my answers are the same
Lexus Test Driver
Joined: Jun 2005
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From: South Bay
http://www.motorlife.com/pages/test_results_final.asp
http://www.motorlife.com/pdfs/AshlandReport_Med.pdf
Everybody has an opinion. Scientific proof is another thing. Do your homework and do what you will.
http://www.motorlife.com/pdfs/AshlandReport_Med.pdf
Everybody has an opinion. Scientific proof is another thing. Do your homework and do what you will.
Lexus Test Driver
Joined: Jul 2005
Posts: 1,015
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From: il
Originally Posted by SC400DAVE
http://www.motorlife.com/pages/test_results_final.asp
http://www.motorlife.com/pdfs/AshlandReport_Med.pdf
Everybody has an opinion. Scientific proof is another thing. Do your homework and do what you will.
http://www.motorlife.com/pdfs/AshlandReport_Med.pdf
Everybody has an opinion. Scientific proof is another thing. Do your homework and do what you will.
hmmm wonder witch oil is better
Lexus Test Driver
Joined: Jul 2005
Posts: 1,015
Likes: 0
From: il
Originally Posted by SC400DAVE
http://www.motorlife.com/pages/test_results_final.asp
http://www.motorlife.com/pdfs/AshlandReport_Med.pdf
Everybody has an opinion. Scientific proof is another thing. Do your homework and do what you will.
http://www.motorlife.com/pdfs/AshlandReport_Med.pdf
Everybody has an opinion. Scientific proof is another thing. Do your homework and do what you will.