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How do I know which oil to put in my car?
Choose an oil with the vehicle manufacture’s recommended viscosity rating (check your owner’s manual). Viscosity is an oil’s ability to flow at different temperatures. The two most common viscosities (a.k.a. weights) are SAE 5W-30 and SAE 10W-30. The lower the number, the thinner the oil.
Can we use 5W40 instead of 5W-30?
In practice, this means that each oil is just as viscous at lower temperatures and will remain viscous at -30°C, however 5w40 oil outperforms 5w30 oils at higher temperatures, being effective up to ambient temperatures of 50°C, as opposed to 30°C.
Can I use 10W 40 instead of 5W-30?
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.
Which is better 5W-30 or 5W40?
In general, 5w30 is a great multi-grade oil for different temperature specters. It is also more fuel efficient. 5W40 is a motor oil that penetrates to the active mechanisms faster, and provides excellent lubrication on start up.
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.
What does 5w30 mean?
5w30 motor oil has a winter viscosity grade of five, meaning it’s less viscous (less thick) at very low temperatures compared to, say, 10w30. It has a hot viscosity grade of 30, which means it is less viscous at high temperatures than an oil such as 5w50.
What is 5w40 oil used for?
5w40 is a motor oil that helps the engine to work smoothly and the moving parts from overheat because of friction. 5w40 transfer heat from the combustion cycle and assist to keep the engine clean by burning by-product and protects the engine from oxidation.
Is 5w40 good for hot weather?
40 weight oil is usually “good enough” for a hot climate, but there is hot and there is really HOT. And multi-viscosity oils does not stay multi-viscosity over its usual service life. So “You risk engine failure, and it is your fault, if that is not what your car’s manual says to use, or use for your climate.”.
Is 5w40 good for high mileage cars?
According to Mobil Oil’s website, a heavy grade 5W-40 oil is best for use in vehicles that hold a diesel motor with high mileage. The use of heavy grade 5W-40 oils help to extend the life of diesel engines by protecting the engine against leaks, Z.
Does 10w30 hurt 5w30 engine?
Most oils will mix perfectly, provided they have a similar synthetic. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mixing the viscosity of oils will not have any effect on the engine. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them.
What is 10W40 oil used for?
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.
Which is better 10W40 or 5w30?
The first number in the motor oil’s name describes the oil’s cold viscosity. A 10w-40 motor oil is a thicker oil at startup than a 5w-30 motor oil. Therefore, 10w-40 oil clings to the engine’s moving parts more than the lower viscosity 5w-30 oil.
How long does 5W40 last?
I would say your safe to 10K miles with the Rotella 5W40 Synthetic.
What does 5W40 mean?
5w40 motor oil has a winter viscosity grade of five, meaning it’s less viscous at very low temperatures, compared to, say, 10w40. It has a hot viscosity grade of 40, which means it is just as viscous as 10w40 at high temperatures but less viscous than oils such as 15w50.
Which engine oil is best for hot weather?
6 Top Best Motor Oils For Hot Climate Like Florida And Comparison IMAGE PRODUCT EDITOR’S RATING Castrol 06246 Edge Full Synthetic Motor Oil 9.1 BEST BUDGET Valvoline High Mileage Oil With MaxLife Technology 8.8 Mobil 1 120762 Synthetic Motor Oil 8.6 Castrol 03094 GTX 10W-40 Conventional Motor Oil 8.2.
Can you switch oil types?
Myth: Once you switch to synthetic oil, you can never switch back. This is one of the most persistent myths about synthetic oil—and completely untrue. You can switch back and forth at any time. In fact, synthetic blends are simply a mixture of synthetic and conventional oils.
Can I put synthetic oil in my car after using regular oil?
yes. If you don’t have a choice, adding synthetic oil to regular oil can help you out in a pinch. Since motor oils are generally made from the same ingredients (base oil and additives), they are typically compatible when mixed.
Can I add synthetic oil to regular oil?
Mixing them will not improve the performance or efficiency of your engine in any way. Adding synthetic oil to regular motor oil will not enhance the regular oil. Mixing regular motor oil with synthetic oil may dilute the benefits of the costlier synthetic oil.
