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Maintenance & Repair Synthetic motor oil
8536 messages, Last post on Nov 21, 2009 at 9:34 AM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
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Replying to: altair4 (Aug 06, 2009 5:54 am)  . 3 months for us would be about 2000 miles...I'm not about to change full synthetic on that schedule. |
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Replying to: altair4 (Aug 06, 2009 5:54 am)
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Replying to: ruking1 (Aug 06, 2009 6:16 am) This is a tad like a rubber ruler in that in the USA that can set off "emergency alarms" and panic overloads  3001 miles- just waiting for the engine to literally BLOW UP !!  Europe in contrast than can mean 30,001 miles.  The US market seems to have a pretty high incidence of sludge a matics. So the first order of business is to make sure an engine and model and oem line was NOT selected. So for (only) example, Toyota has settled without admitting guilt, a series of engine models that are put in any number of platforms. Many look to synthetic oils to eliminate sludge issues, but let me assure you any engine that "cooks" oil (consistently and normally exceeds the flash point of oil) will eventually sludge. It is true that certain synthetics are just less prone to sludging, aka have a higher flash point.
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Replying to: ruking1 (Aug 06, 2009 8:08 am) 
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Replying to: wtd44 (Aug 07, 2009 2:29 pm) The real crime (no guilt of course acknowledged or intented admitted or declared ) is that it allows the continued sale of sludge-a-matics with minimal to no re-design or re-specifications needed !! So for example, I have not bought a Toyota Camry (sludge a matics) for going on 24 years. This is not to single out one manufacturer. There is literally a laundry list of oems and models. "Let the force be with you, Luke" and don't cross over to the DARK (sludge-a-matic) side ! UPSHOT: do one's homework and buy only those oems and models that have extended oil changes and are not "has been" sludge a matics repackaged for modern day consumption with sexy new body coverings. TOYOTA DEAL: HERE COMES THE SLUDGE JUDGE
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Replying to: ruking1 (Aug 07, 2009 2:43 pm)
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Replying to: wtd44 (Aug 07, 2009 2:55 pm) 
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Replying to: ruking1 (Aug 07, 2009 3:03 pm) |
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The Toyota sludge problem was 10 years ago. It wouldn't stop me from buying a Toyota in the future. It pays to use the best oil and to monitor how the oil is doing. If the oxidation and nitration are getting high, sludge and vanish are going to form. You can use cheap oil and change it more often, or the best and get extended drain intervals, with less wear and sludge in your engine.
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Replying to: ralph1970 (Aug 08, 2009 1:41 am) The problem is in their not admitting the sludging in a timely manner. Dealers were ridiculing customers as though they hadn't taken care of the motors, at the time that Toyo knew they had problems. They even made minor changes to the physical engine to try to reduce the problem. How would they treat a new problem? Admit or cover up--such as downshifting problems in transmission and computer control? I thought synthetics weren't sludge prone. |
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