Will thicker oil damage my engine?
Using oil that is thicker than recommended may lead to a decrease in fuel economy, a higher load on your engine, and even a shorter life for your engine. Conversely, using thinner, lighter-weight oil than recommended can cause excessive wear and shorter life.
Is 10w40 better for older cars?
The higher viscosity of 10w40 at high temperatures reduces wear and tear when putting more pressure on your vehicle’s engine. 10w40 is also a great option for older vehicles. The increased viscosity of 10w40 held with the metal to metal contact in the engine and helped prolong the engine’s life.
What oil is good for older engines?
Valvoline MaxLife 10W-40 stands out as the best oil for old motors. Valvoline comes with enhanced additives. The additives enable your motor to perform better. It comes with seal conditioners that prevent leaks.
Is it better to use thicker oil in high-mileage engine?
A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. … As long as you’re not hearing knocking or serious mechanical noises from the engine, the heavier oil should buy you many more miles of service from your vehicle.
What happens if I put 10w40 instead of 5W-30?
As posted above, mixing 5w30 with 10w40 will give you an oil that performs somewhat better in the cold than 10w40, but less good cold than 5w30, and that has a viscosity a bit higher than 5w30 but a bit lower than 10w40. Mixing different oils will not improve the performance or efficiency of the engine in any way.
What happens if I use 20w50 instead of 5W-30?
Can I use 20w50 instead of 5w30? 20w50 is actually thicker than 5w30. This will result in less fuel efficiency, less horsepower, and more engine damage because it will have to work harder to rotate. Trust the engineers that made your vehicle.
What happens if I put 10W40 instead of 10W30?
The basic fact that “40” is greater than “30” tells you that. If you were to put 10W40 in an engine designed for 10W30, the “thicker” oil would lead to friction in the engine and an increased load on the oil pump. The car would have to do more work to get the oil around the engine block.
Is 20W50 thicker than 10W40?
Is 10w40 good for high mileage? 10W40 is not better than 20W50 for high mileage. The difference between 10w40 and 20w50 is simply that the latter is thicker. As far as gas mileage goes, no oil will improve your gas mileage by changing from 10W40 to 20W50 or vice versa.
Is 10W30 thicker than 10W40?
Engines that run high operating oil temperatures require higher viscosity oil. … The difference between 10W-30 and a 10W-40 is the high temperature viscosity. Obviously, a 10W-40 is thicker than a 10W-30 at high temperature.
Is full synthetic oil good for older engines?
It protects better, performs better, and lasts longer, and it’s no longer made with a chemical compound that could hurt older vehicles.
Is 10w30 thicker than 5w30?
Is 10w30 thicker than 5w30? 10w30 is thicker than 5w30 because it has a higher viscosity in low temperatures. The engine oil will flow slower than 5w30 during the cold season. … Thicker oil offers better lubrication of motor and engine parts.
Is 10w30 good for high mileage?
Mobil Clean High Mileage 10W-30 is designed for vehicles with more than 75,000 miles. Its advanced formulation helps protect seals and prolong engine life. … These oils protect against sludge and engine rust and corrosion under high and low-temperature operating conditions.