We may earn a commission if you make a purchase through one of our links. The LA Times newsroom or editorial staff was not involved in the creation of this content. Learn more

The Best High Mileage Motor Oil for Well-Traveled Cars

As high mileage vehicles tend to have more wear than new engines, gaps between components can form, leading to leaks. As a car engines ages, seals and gaskets have a tendency to dry out, crack and oil begins to burn off between changes. All of this can ultimately contribute to the buildup of oil sludge and deposits in the engine, potentially shortening the life of your car's engine.

High mileage motor oils are designed to include additives that provide better lubrication, help protect engine seals, and prevent sludge from building up. This minimizes engine wear and extends the life of the engine, while ideally improving performance in the meantime.

We've chosen the best high mileage motor oils in 2021 from leading companies proven to perform over time and contain all the positive traits we've described above. Price varies quite a bit depending on oil sales at the time as well as your local market, so it's best to simply pick the oil that best suits your needs.

Comparing the Best High Mileage Motor Oils for 2021

Pennzoil 1 gallon Marine Premium Plus High Mileage Motor Oil

The Pennzoil High Mileage motor oil has been formulated especially for higher mileage vehicles and their unique set of needs. This conventional motor oil uses additives to protect against the wear that can come with age and improve overall performance. This additives help to keep seals in good shape to reduce leaks, as well as keeping the engine clean and preventing the buildup of sludge and deposits. Oil consumption is reduced, allowing this oil the help your vehicle's engine stay running strong for longer.

Mobil 1 High Mileage Motor Oil

Mobil 1 is known for making quality oils, something which has earned them a loyal customer base. Their High Mileage Synthetic Oil is designed to extend the life of your vehicle's engine life while maximizing performance. This is accomplished through the use of additives that address several of the issues that can come with a higher mileage vehicle including reduction of sludge buildup, as well as conditioning the seals to prevent leaks. If your vehicle has existing sludge build up, this oil can help clean it out although initially shorter oil change intervals are recommended if this is the case.

Castrol 06147 GTX 20W-50 Conventional High Mileage Motor Oil

Castrol has firmly established their reputation as a manufacturer of quality motor oils, whether conventional or synthetic. The Castrol GTX High Mileage motor oil combines conventional motor oil with a blend of additives designed to meet the needs of higher mileage cars. These additives include conditioners to help maintain seals and reduce leaks, as well as to fight the buildup of sludge and protect against oil consumption. Overall, this motor oil is designed to minimize engine wear and extend the life of a high mileage engine.

Amsoil Severe Gear High Mileage Motor Oil

Amsoil oils are often more expensive and more difficult to find, but many find that they are well worth the trouble. The Amsoil Extended Life Synthetic Motor Oil works well for all engines, although it’s particularly well-suited to higher mileage vehicles due to being designed to stay effective and reduce wear over time. This oil contains additives that allow it to resist the buildup of sludge and deposits, resulting in a cleaner. better-performing, longer-lasting engine. This oil is formulated to go for longer intervals between changes.

best maxlife high mileage motor oil

Valvoline with MaxLife Technology High Mileage Motor Oil

The MaxLife Higher Mileage motor oil from Valvoline is designed to extend the engine life of high mileage vehicles. This motor oil uses a blend of additives formulated to meet the specific needs of higher mileage cars. This includes helping to prevent leaks by including seal conditioners as well as providing lubrication to reduce potentially harmful abrasion in the engine. This synthetic blend motor oil also includes additives to help prevent sludge and deposit build up, along with helping to remove any existing sludge.

bestcovery team.jpg
Our research team searches out the best of everything so that you can confidently pick the perfect products and services for your needs.
Related Content
Go to top