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After using the CerTech Gels the way they said and putting about 700 miles on the car, our 1985 Volvo no longer smokes and it runs like when we got it. I did not think it would work, but I saved a ton by not having to buy a new car. It really works.
Bill Davis,
I’ve used CerTech Gel in the crankcase of my 1995 Ford 350 van that was tired & i was looking at an expensive overhaul or parking it. I put CerTech Gel in about 7000 miles ago, I’ve got to tell you, the performance of my engine has drastically improved, I’m no longer considering an overhaul or any major repairs. I’m a happy customer and would recommend CerTech, its a cheap solution to repairing your engine – it really works.