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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   1989 toyota pickup 3.0 crank no start I have a 1989 toyota pickup 3.0 crank no...   Strut spring orientation and strut mount tension nut 2017 Nissan rogue awd 2.5 L Put in Monro...   Transmission stuck in part, I have tried everything So I'm working on my elderly fathers 201...   2017 dodge journey LED headlights on/off randomly Year of vehicle 2017 Make of vehicle dod...   Kia Soul starter replacement issues! Okay so my car is a 2010 Kia soul 2.0 en...   Please Help - Knock sound & engine fail Hi all, Hoping to get some insight and ...   multiple warning lights 2013 GMC Terrain 130,000 miles 4 cylinde...   03 alero no low speed blower Good day everyone, I have a 2003 Olds a...   04 Chevy 2500hd tail light issues Help!!! I have changed my combo switch...   1999 Grand Caravan Sport not starting. Hi. I'm new here. I hope someone can hel...

Sludge Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting bernsax User Aug 13, 2006, 11:17 AM Post #1 of 3 (1939 views) Sludge Sign In After reading the response to my question about the 2.7 engine, I am curious about removing possible existing sludge. I think I now understand the problem with the timing chain of this engine. The car I just bought has 27,000 miles on it. I have no idea if the previous owner actually changed the oil on a proper schedule. One of the articles I read says not to add any type of oil additive that will remove sludge. If I use a quality oil such as Castrol and change it within 3,000 miles, will the possible sludge eventually disappear? Would I be better off to switch to Mobile 1 synthetic? DanD Veteran / Moderator Aug 13, 2006, 12:08 PM Post #2 of 3 (1937 views) Re: Sludge Sign In If the sludge is there it’s there and there’s not a lot you’re going to do to get it out of there safely. Even changing brands of oil may cause larger chunks of sludge to break off and plug the oilier passage for the chain. All brands of oils have their own chemical packages with cleaners in them. Some clean certain things better then others; switching from one brand to another; it may clean something that the old oils package wouldn’t touch. I’m not a chemist so don’t ask me which to stay away from; so buy the oil that you wish to use and keep your fingers crossed. I also won’t get into the debate over synthetic or organic; just stay with the recommended grade of oil of your choice, keep it clean and frequently changed. For the first while I wouldn’t go by mileage other then setting a maximum mileage between changes; I would be looking at the condition of the oil. If it starts to turn dark change it regardless of mileage; for the same reasons I mentioned above the different chemical packages used. Dan. Canadian "EH" Tom Greenleaf Ultimate Carjunky / Moderator Aug 13, 2006, 12:27 PM Post #3 of 3 (1934 views) Re: Sludge Sign In To add to this: Bernsax -- to tell if you even have a sludge problem look at the dipstick and under the oil fill cap. If it's running well and there's some evidence I agree with Dan about just methodically change the oil - even early and let the oil slowly disolve the sludge - NO additives to speed it up. If it throws clots it's like a heart attack to an engine. I won that with a known sludged engine that I bought but the car was neat so I took the chance and got rid of the sludge and that car lived a long and happy life with two more owners until rust became the killer of it. I'll bet you are ok so just take care of it and it should take care of you, T   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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