If you live in extremely cold climates such as the upper north, Valvoline’s SynPower Full Synthetic Motor Oil should be an excellent choice. Its low temperature viscosity rating at 0 helps ensure you get exceptionally fast engine starts even in extremely cold weather conditions. And if you believe what motorists are saying about Valvoline’s SynPower, then you know that it can sufficiently enhance your fuel mileage by up to 2 MPG. It may not be that much, but it is still a lot better than say a 0.5- or a 1- MPG increase. SynPower can also be used on high-performance engines such as those that are supercharged or turbocharged. It works exceptionally well in naturally-aspirated engines, too. With SynPower you get excellent engine performance and protection at a really friendly price.