Art's Garage

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Today: 8:00 am - 6:00 pm

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Hours

Regular Hours

Mon - Fri:	8:00 am - 6:00 pm

Oil Change
The 7000 mile interval set by the manufacturers [ I believe with some government guidelines ] is bogus. These large mileage intervals led to many Saab engines around 2000 [A.D.] to clog the pickup screen in the sump, leading to low oil pressure and engine failure. Stripping an engine down with high mileage oil change intervals shows large amounts of sludge everywhere. The dirty oil can hold only so much particulate matter, hence sludge formation. If you car manufacturer says use synthetic oil, by all means use it, even though I believe [ as did Mercedes Benz when synthetic oil made its debut ] that it is wishful thinking to believe it lasts that much longer. Synthetic oil may keep from breaking down at high temperature, but it has no magical properties that allow it to hold more particulate matter in suspension. A number of years ago I took some advice from a chemical engineer who worked on developing Mobil 1 oil when Mobile Research was in Hopewell Township. This guy, with no axe to grind, said synthetic oil was better oil, but by mixing a quart of it with "regular" mineral based oil, you get all the advantages of synthetic without the cost. I have been following his advice on my own ancient fleet of cars for over twenty five years and have had no lubrication problems whatever.

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