Some sludge is preventable, but certain engines have a pre-disposition for this problem and put entire generations of cars at risk.

VW 1.8L Turbocharged Engine

Sludge in a VW 1.8L Turbocharged engine
Sludge in the VW 1.8L Turbocharged

From 1997-2005, VW manufactured a 1.8-liter turbocharged engine with a tiny 3.7 quart oil capacity. That’s simply not a lot of oil to compensate for the amount of heat this engine generates. Complaints sparked a class-action lawsuit with an eventual settlement to help many owners cover their repair bills.

This engine runs hot, stays hot, and doesn't have enough oil to do anything about it.

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Toyota 3.0L V6 Engine

Sludge in a Toyota 3.0L V6 engine
Sludge in the Toyota 3.0L V6

Toyota settled a class-action engine-sludge suit in 2007 that covered an estimated 2.5-million Toyota and Lexus vehicles made between 1997 and 2002. Toyota agreed to repair the “sludged-up” engines for up to eight years from the time of purchase.

Despite the settlement, Toyota has staunchly maintained that the problems are the owners fault. They are lying.

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Chrysler 3.0L V6 Engine

Sludge in a Chrysler 3.0L V6 engine
Sludge in the Chrysler 3.0L V6

The 2.7L DaimlerChrysler engine is highly suceptible to oil sludge. The sludge retains heat and starts putting severe strain on the mechanical parts of your engine. This all spells disaster for your car and typically results in a damaged beyond repair engine.

A defective crankcase ventilation system AND water pump? Let the good times leak.

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