Last year I bought a few jugs of the above at WalMart on sale and thought it was a good deal, the jug said it was good for all vehicles and would protect for 5 years and 150,000 miles. The label did not say not to use it on non GM vehicles, and I liked the idea that it was phosphate and silicate free as these are hard on waterpump seals. Shortly after that the water pump went out on our 92 Toyota Camry at about 135,000 miles which may or may not be caused by the dexcool. But this has my wondering if anyone else had a similiar situation, as this product is sold at Walmart and other national chains. It would be nice not to have to mess with the coolant every year of so and extended water pump life would be a welcome benefit, but is this really going to happen with this product?