Can I put 10w40 instead of 10w30?

Between a 10W-30 and 10W-40, 10W30 motor oil would run smoother in colder climates while a 10W40 would be more effective in preventing engine wear and tear in warmer temperatures.
Takedown request   |   View complete answer on offroadingpro.com


Is there a big difference between 10W30 and 10W40?

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.
Takedown request   |   View complete answer on motorstate.com


Can 10W30 be mixed with 10W40?

Mixing 10W30 with 10W40 Some people say mixing them is fine as long as you don't live in freezing weather. The motor oils in these blends are not harmful to your vehicle, even if they are mixed with synthetic oils.
Takedown request   |   View complete answer on mcnallyinstitute.com


What can I use instead of 10W30?

Which Oil Is Better 5w30 Or 10w30? The 5w30 oil is a great multigrade oil that can be used in low starting temperatures and high summer temperatures. In addition, it is more fuel efficient since it reduces the drag on the bearings and engine parts, which reduces fuel consumption.
Takedown request   |   View complete answer on mcnallyinstitute.com


Can I use 10W40 instead of 10W30 in my motorcycle?

The short answer is yes. Because both oils are formulated to give the same performance, it will be safe for you to use either oil. Some differences between the two oils include viscosity and base oil.
Takedown request   |   View complete answer on outdoorcaption.com


Q: 10W-40 OIL IN 10W-30 ENGINE? SPROCKET UPDATE, TYRE WARRANTY, ROYAL ENFIELD SERVICE, CARB CLEANER



Which is more fuel efficient 10W30 or 10W40 engine oil?

Technically, a lighter weight oil will provide better gas mileage as it's lower viscosity makes it easier to move through the oil system. However, the difference between 10W30 and 10W40 will be indistinguishable.
Takedown request   |   View complete answer on quora.com


Can you use thicker oil in an older engine?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well.
Takedown request   |   View complete answer on startribune.com


Will 10W40 hurt a 5w30 engine?

Your vehicle does not use 5W-30 oil. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.
Takedown request   |   View complete answer on yourmechanic.com


What happens if I put the wrong oil in my car?

Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.
Takedown request   |   View complete answer on machinerylubrication.com


What is 10W-30 oil recommended for?

10w30 is a multi-grade engine oil ideal for heavy-load engines because of its ability to withstand hot temperatures for a long time without compromising the performance of the engine. This engine oil has a viscosity grade of 10 in low temperatures and 30 in high temperatures.
Takedown request   |   View complete answer on rxmechanic.com


Is it OK to mix motor oil weights?

The truth is simple: don't mix two different oils that have different weights (viscosities). Viscosity Grades might sound pretty scientific, but the simple fact is that this is what keeps your engine running smoothly.
Takedown request   |   View complete answer on gearslap.com


Can you mix oils of different viscosity?

yes you can mix same brand and type oils with different viscosity and it will be fine as long as you don't mix them 50/50. If you mix 200 ml of oil with the rest of oil needed for your engine you will be totally fine.
Takedown request   |   View complete answer on mechanics.stackexchange.com


Can you mix motor oil?

WHAT ABOUT MIXING ENGINE OIL BRANDS? Yes. It won't harm your engine to mix, for example, Quaker State® motor oil with Pennzoil, as long as the oil you use is the weight (or viscosity) recommended in your vehicle owner's manual.
Takedown request   |   View complete answer on jiffylube.com


What uses 10w40 oil?

This oil weight is commonly used in diesel engines or in a smaller motorcycle engine too. The 10W-40 oil viscosity also often serves as an alternative for older engines with burning or oil leaking issues. Why is that? The 10W-40 engine oil has a thicker viscosity than, say, 10W-30 oil when the car engine is hot.
Takedown request   |   View complete answer on repairsmith.com


What is 10W-40 oil for?

Higher viscosity oil such as a 10W-40 can be useful for older engines burning or leaking oil. We offer Mobil™ 10W-40 high viscosity motor oils for use in vehicles with more than 75,000 miles, and a synthetic blend oil when cost is a consideration.
Takedown request   |   View complete answer on mobil.com


Is 10w40 fully synthetic?

Semi-synthetic oils such as 10W40 have long been the standard. Their base is refined crude oil, which is then blended with additives. However the market is moving towards synthetic oils.
Takedown request   |   View complete answer on wolflubes.com


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.
Takedown request   |   View complete answer on columbiatireauto.com


Can wrong oil cause knocking?

Even with the oil full, if it is not being sent to the places in the engine that need it. Low oil pressure can be caused by a clogged line, a bad pump, or a clogged filter. The low oil pressure would rob the engine of the oil it needs and produce a knocking sound.
Takedown request   |   View complete answer on yourmechanic.com


Can wrong oil cause misfire?

Can A Dirty Oil Filter Cause Misfire? When an oil filter is bad, it can reduce oil flow, which can cause an improper valve timing, which can result in a misfire. If oil flow is low for a long time, worn engine parts may result in a misfire.
Takedown request   |   View complete answer on mcnallyinstitute.com


Is 10w40 better than 5w30?

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


What is the difference between 10W 40 and 5W 40 engine oil?

5W40 vs 10W40 – Differences

The main difference between the two oil types is that one is thinner than the other. The 5W40 is thinner than the 10W40 at lower temperatures. But when the temperature is higher, both motor oils similarly perform their intended functions (using the same viscosity).
Takedown request   |   View complete answer on motoshark.com


What oil is best for old engines?

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


What is 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


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.
Takedown request   |   View complete answer on cars.com
Next question
How much does Jeff Bezos wife?