Quiet Old and Tired Noise Thicker, heavier oil, or oil thickening additives, such as the STP Oil Treatment (or one of the many other options) are definitely a good idea to prolong the longevity of older motors. It will fill the bigger gaps between moving metal parts, and will adhere better to the metal.

Is Thicker oil better for worn engines?

The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well. 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.

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.

Related Question Is Thicker oil better for older engines?

Does thicker oil burn less?

A lot of oil-burning takes place because an engine's piston rings are worn out, and thicker oil won't fix that. They also count on low-viscosity oils to reduce friction and drag (the work of simply moving the engine parts through thicker oil), which improves mileage.

Is synthetic oil bad for older cars?

The short answer is, yes, you can use synthetic oil in older cars. Some early synthetic oils could damage engine seals, but companies have changed their formulations since then, and specifically test for seal compatibility, Fenske said.

Is it OK to mix oil weights?

The good news is that mixing different types of oil it will not harm your engine in any way in the short run. Most synthetic and semi-synthetic engine oils are based on regular oil and are compatible. Now, as far as different grades are concerned, mixing between them isn't something that will damage your engine either.

What engines use 20W50?

Depending on the recommendations for the particular vehicle, 20W50 oil is suitable for large or small diesel engines, gasoline engines, motorcycles and aviation vehicles. It is also suitable for both air- and liquid-cooled engines.

Does it hurt to change brands of motor oil?

No. Switching brands is not harmful to your engine as long as you choose an oil marked with the API donut of the same level, e.g., API SN. You may give up enhanced performance if you switch from synthetic or high mileage to conventional oil. MYTH: When motor oil becomes dark, that means it's time to change it.

Does Eco Mode Save Gas Kia?
When To Replace Brake Calipers