Does high mileage oil make a difference?

Reduced oil consumption: High mileage vehicles tend to leak and burn off more oil than younger cars due to degraded engine seals. High mileage oil rejuvenates degraded seals, which leads to less oil consumption and burnoff. Less engine sludge: Older engines tend to accumulate sludge left behind by other motor oils.
Takedown request   |   View complete answer on firestonecompleteautocare.com


Should you use high mileage oil?

It's really a judgment call if you should pay more for high-performance oil when your vehicle has 100,000 miles on it but is using little or no motor oil. High-mileage motor oil doesn't hurt and it could prevent leaks from starting.
Takedown request   |   View complete answer on cars.com


Is high mileage oil better than synthetic?

Myth: Full synthetic oil is not good for high mileage cars or older vehicles. The myth is rooted in the idea that synthetic oil is “slipperier”—lower in viscosity, or not as compatible with seals and will therefore leak or leak more in places conventional oil might not. Again, completely untrue.
Takedown request   |   View complete answer on pennzoil.com


When should I use high mileage oil?

High Mileage Oil: A Practical Guide
  • Most high mileage oils are formulated to benefit vehicles with 75,000 miles or more. ...
  • An engine that has been well cared for, with all the scheduled maintenance performed, should be able to support longer intervals between oil changes. ...
  • Analytical Methods for Base Stock.
Takedown request   |   View complete answer on machinerylubrication.com


Can I use high mileage oil in a low mileage car?

In short, there is no harm in using high mileage oil in low mileage vehicles or newer and newer vehicles. But, the oil is specially designed to target the problems which develop in older cars with more than 75,000 miles of experience. So, it will not be beneficial for younger vehicles or low mileage vehicles.
Takedown request   |   View complete answer on drivermoola.com


What is High mileage oil? The truth



How long does high mileage oil last?

Quick-lube chains say 3,000 miles, auto manufacturers recommend 5,000 to 7,500 miles and synthetic oil companies, 10,000.
Takedown request   |   View complete answer on scientificamerican.com


Is high mileage oil thicker?

High mileage oils contain viscosity modifiers that are durable and won't diminish over time. This causes the oil to stay thicker for longer periods of time, helping protect your engine parts.
Takedown request   |   View complete answer on gandgautorepair.com


Does a car run better after an oil change?

Answer provided by. “Your car gets several noticeable benefits from an oil change. You'll likely notice that your car gets better gas mileage due to better engine lubrication. It also boosts compression and reduces friction, which can make your acceleration slightly better, as well as your overall driving.
Takedown request   |   View complete answer on getjerry.com


Can you switch to synthetic oil with high mileage?

You can switch from conventional motor oil to Mobil 1™ synthetic oil (and back again, if you want) without following any special procedures. There are two exceptions to this: a higher-mileage engine that has never used synthetic motor oil, or an engine that has used conventional motor oil and been poorly maintained.
Takedown request   |   View complete answer on mobil.com


What is special about high mileage oil?

High mileage oil rejuvenates degraded seals, which leads to less oil consumption and burnoff. Less engine sludge: Older engines tend to accumulate sludge left behind by other motor oils. High mileage oil breaks up and dissolves residual sludge.
Takedown request   |   View complete answer on firestonecompleteautocare.com


What is the best oil for an old engine?

When you're choosing the best oil for older cars or high mileage engines, there are several criteria you can look at.
  • Pennzoil High Mileage Conventional Motor Oil. ...
  • Castrol GTX Part-Synthetic High Mileage. ...
  • Valvoline MaxLife High Mileage Synthetic Blend. ...
  • Mobil1 High Mileage Engine Oil. ...
  • Amsoil Premium Protection Motor Oil.
Takedown request   |   View complete answer on carbrain.com


Is high mileage synthetic oil worth it?

Though it provides an added layer of protection for older cars, some sources suggest a specific high mileage blend might not be worth the extra money if a car's engine is not already leaking or is burning oil excessively.
Takedown request   |   View complete answer on carfax.com


Is 5w30 good for high mileage?

Amazon Basics Full Synthetic is the best 5w30 oil for high mileage vehicles. This oil should only be used on vehicles exceeding 75,000 miles. This motor oil is formulated for longer drain intervals. It helps in preventing a build-up on drain intervals and preventing rust and corrosion.
Takedown request   |   View complete answer on rxmechanic.com


Why do high mileage cars burn oil?

Why Is My Car Burning Through Oil So Fast? It is common for worn out parts to cause burning oil. Your car may burn oil if you have worn valve seals or piston rings. In the combustion chamber, valve seals and piston rings keep engine oil from entering.
Takedown request   |   View complete answer on mcnallyinstitute.com


What's the best oil for high mileage cars?

10 Top-Rated Oils and Additives for High-Mileage Vehicles
  • Valvoline High Mileage with MaxLife Technology Synthetic Blend Motor Oil. ...
  • Pennzoil High Mileage Motor Oil. ...
  • Slick 50 Recharged High Mileage Treatment. ...
  • Gumout Fuel System Cleaner. ...
  • Royal Purple High Mileage Synthetic. ...
  • Techron Fuel Cleaner. ...
  • Mobil Super High Mileage Oil.
Takedown request   |   View complete answer on autoweek.com


When should you not use synthetic oil?

Better For Older Engines

This being said, however, it is still not recommended to use synthetic oil in engines that have experienced significant actions – specifically, those that have reached around 75,000 miles on the odometer.
Takedown request   |   View complete answer on mccluskeychevrolet.com


What are the disadvantages of synthetic oil?

A few disadvantages of synthetic oil to be aware of include: Probably the most glaring downside of synthetic oil is the cost. The price of synthetic oil is around two to four times the price of conventional oil. Synthetics may be more prone to additives precipitation during cold storage conditions.
Takedown request   |   View complete answer on machinerylubrication.com


Should I use high mileage oil if I have no leaks?

The bottom line is that high-mileage engine oils are designed for engines that are beyond their warranties and have 60-, 80-, 150,000 miles. Use it if you see a leak or notice rattling.
Takedown request   |   View complete answer on cenex.com


Can I change oil every 2 years?

Simply put, as a general rule, manufacturers recommend that you change the oil for a gasoline engine every 10,000 to 15,000 km, or about once a year for “regular” usage (frequent but not intensive) or once every 2 years if used less frequently.
Takedown request   |   View complete answer on nitifilter.com


Does synthetic oil make your car run smoother?

Synthetic motor oil is also resistant to oil oxidation and sludge. What this all means is the engine will run smoother and quieter for a longer time.
Takedown request   |   View complete answer on scanneranswers.com


Can you feel a difference after an oil change?

Smooth Ride

If you haven't had regular oil changes in the past, you probably notice a significant difference in how the car performs before and after the oil change. Once the oil change is complete, your vehicle runs smoothly and with more power.
Takedown request   |   View complete answer on mavistire.com


Can thick oil damage engine?

It's best to use the oil viscosity recommended in the owner's manual, but using a slightly thinner or thicker oil (lighter or heavier viscosity) generally poses no long-term harm.
Takedown request   |   View complete answer on blog.amsoil.com


Is 5w30 better than 10w40?

The 5w30 oil will flow better at low temperatures than the 10w40 oil. This means that the 5w30 oil will protect the engine better at low temperatures, usually when the engine is just starting or during weather conditions such as winter.
Takedown request   |   View complete answer on theydiffer.com


Why can't you go back to regular oil after synthetic?

Synthetic oils typically provide better protection than conventional oils, but switching back and forth between full synthetic and conventional oil will not damage the engine. Of course, this depends on the current engine condition and the quality of the conventional oil being used.
Takedown request   |   View complete answer on mobil.com


Is 5W30 better for older cars?

5W-20 and 5W30 motor oil are winter viscosity grade oils primarily recommended for older engines and light-duty use. These oils are best utilized in colder temperatures.
Takedown request   |   View complete answer on repairsmith.com