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I’ve been told not to change the type oil I use in my car. My mechanic says it will cause my engine to sludge up! Is there any truth to this statement?

The truth is that not changing your oil is the MAIN reason for sludge formation! Another common reason for sludge to build up is an engine is that runs too cold! If the thermostat is stuck open or the wrong temperature, the car will not get up to operating temperature and the engine will never get hot enough to boil off moisture that has collected inside the engine. This allows acids to form, making SLUDGE inside your engine. According to the people that research oils, there is very little difference between today’s engine oil brands. What does matter is the API (American Petroleum Institute) and SAE (Society of Automotive Engineers) approval symbol on the back of the container. You should see the letters SJ or SK printed on this symbol. These letters tell you that this oil is the most advanced formula of oil on the market with all the mandated additives needed for today’s cars. Don’t worry about the brands of oil you use, just make sure it is API and SAE approved and change your oil every 3 months or 3000 miles!

 

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