5W-30 motor oil is the top viscosity recommendation by automakers over the past four decades for use in many vehicle types. Furthermore, high-mileage 5W-30 motor oil is specially formulated for late model vehicles or newer vehicles with over 75,000 miles/120,000 kilometers.
What grade of oil would you use in an engine with high mileage?
Identification. For an older, high-mileage passenger car, it is recommended to switch to a thicker viscosity oil, such as 10W-30, when approaching and passing 100,000 miles, to lubricate the engine well for preservation.
Is 5W-20 oil good for high mileage?
Designed for high mileage vehicles Mobil 1 High Mileage 5W-20 motor oil is recommended by ExxonMobil for use in high mileage vehicles (even those that have used lower quality conventional oils†), including: Cars. Trucks.
Is 5W30 better for older cars?
I say it depends on the engine manufacturers specification. In general thinner oils flow faster and lubricate better, and keep the engine parts cooler. using a thicker oil is asking for trouble. So if your original specification calls for 5W30, I wouldn't change it.
How many miles is 5W20 oil good for?
Protects for up to 20,000 miles between oil changes† Mobil 1 Extended Performance High Mileage 5W-20 advanced full synthetic motor oil is designed to protect critical engine parts for up to 20,000 miles between oil changes† and help extend the life of vehicles with more than 75,000 miles.
Which engine oil is best for high mileage?
- Mobil 1 High Mileage Full Synthetic Motor Oil.
- Royal Purple 11748 HMX SAE 5W-30 Mileage Synthetic Motor Oil.
- Castrol 03111C GTX High Mileage 10W-40 Synthetic Blend Motor Oil.
- Pennzoil 10W-40 High Mileage Motor Oil.
Is it OK to run 5W20 instead of 5W-30?
It is not safe to use 5w20 instead of 5w30. 5W20 is thinner and made for colder temperature. If you use 5w20 in warmer temperature instead of 5w30, you may have to deal with more friction and faster engine wear. Eventually your engine performance and longevity will be affected.
Should you use thicker oil in an older engine?
You should switch to thicker oil if your older car is consuming oil. The general rule is to always use the viscosity your car manufacturer recommended. As your engine gets older, the clearances within the engine change due to wear and tear, and your car could start to consume oil.
What oil should I use for a high mileage engine?
Some mechanics recommend switching to a thicker (higher viscosity) oil — such as 10W-30 full synthetic oil instead of 5W-20 full synthetic — or using oil additives to stop leaks.May 8, 2017
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.
How many miles is 5W-30 Good For?
The miles that 5w30 oil lasts depend on various factors. The mileage will depend on the brand of the oil, the type of vehicle, and also the conditions the vehicle is been used. However, on average 5w30 oils last, for 3000 to 3500 miles bit of high-quality 5w30 oils can go up to 75000 to 10,000 miles.
Can I use 5W-30 instead of 5w20 in high mileage engine?
Lower viscosity oil is used in some engines to reduce oil flow resistance and improve efficiency in cold weather, but high-viscosity lubricants provide more protection to engine internals, especially at warmer temperature. So, to answer, can 5w30 be used instead of 5w20, is no, it may kill your engine in the long run.