I have a 1995 Ford Mustang V6 3.8 liter with about 70,000 miles on a rebuilt engine. Im about to change my oil and was considering using an engine oil flush before changing the oil. Are there any possible side affects to using an oil flush product that I should be aware of? Can it damage gaskets or seals? Is a oil flush something I should even concern myself with?
I wouldn't, there's no reason to use these products. If your crankcase vent system is working properly, the engine internals should be pretty clean, change your oil every 3k or 3 months, it'll keep the engine like new, here's a money-saving tip, use Walmart Supertech oil and filters, cheap and the best you can buy.