Whether the oil is thicker or extra thinner, it specifies the type of engine it is suitable for. There are hundreds of oils but 10w30 and 5w20 are the most common of all. The 10w30 type is the thicker one and 5w20 is the thinner.Also, is 10w30 better for high mileage?
A 10w30 is the same as 5w30 when at operating temperatures. Merely switching cold viscosity isn't likely to do much for you. Instead, try a high mileage oil and see if that helps. High mileage oils have seal conditioners.
One may also ask, which oil is better 5w30 or 10w30? A higher viscosity oil, such as 10w30, will flow slower at low temperatures compared to a lower viscosity oil like 5w30. A higher viscosity or thicker oil will seal better than a low viscosity oil. A thicker oil will also provide better lubrication of critical engine parts.
Simply so, is it OK to use 5w30 instead of 5w20?
The key difference between 5W20 and 5W30 motor oil is that the former is thicker or less viscous. The more viscous motor oil is, the better it will be able to resist the heat and not break down. In this case, 5w30 oil will provide better overall engine protection than 5w20.
What is the difference between 5w 20 and 10w 20?
For example, the 5W20 is better suited to cold regions where the viscosity required of the oil must be enough to get the engine moving during very cold periods while the 10w30 is better suited to hot conditions where heat doesn't have a significant effect on the viscosity.
Is synthetic oil better for diesel engines?
Western Turbo Diesel & Fuel Injection There are many advantages to using synthetic engine oil in your diesel engine. Synthetics have a much better flow rate in cold weather than conventional engine oils, allowing critical moving parts to be better lubricated on start up.What happens if you put the wrong oil in your car?
Motor oil slip-ups. The brand of motor oil matters little, but its viscosity grade (10W-30, for example) is important. Use only what the owner's manual specifies. Using the wrong oil can lead to reduced lubrication and shorter engine life. If the manual says to use synthetic oil, do so.What weight oil is best for summer?
As a general rule, you'll get the best protection in the summer when you use a slightly thicker grade of oil, such as a 10W30 instead of a 5W30. Engines need a thicker oil in the summer months because of the summer heat and its effects on thinning the oil out.Does thicker oil help with leaks?
As an engine heats up, the oil thins, becoming more susceptible to leaks through faulty gaskets. Draining the oil from your vehicle and replacing it with a thicker weight or synthetic oil can help to prevent oil from leaking through some of the smaller breaks in the gasket seals.Can you switch from 5w30 to 10w30?
When to Use 10w30 vs 5w30 The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. You should always use the weight of oil recommended by your vehicle's manufacturer to provide your engine with the best protection and maximum fuel economy.What is the best engine oil for high mileage?
Top 5 Engine Oils for High Mileage Cars and Trucks - #1 – Mobile 1 High Mileage Synthetic Oil.
- #2 – Mobile Super High Mileage Synthetic Oil.
- #3 – Royal Purple HMX Synthetic Oil.
- #4 – Castrol GTX High Mileage Synthetic Blend Oil.
- #5 – Pennzoil High Mileage Motor Oil.
Should I 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. The engine does not leak and I've never seen a whiff of blue smoke.What is high mileage synthetic oil?
High mileage oil is designed for vehicles with more than 75,000 miles. As a rule of thumb, most new cars require synthetic oil. Older cars generally run well with conventional oil, unless your vehicle has more than 75,000 miles on it, in which case high-mileage oil is recommended.What happens if you put 5w30 in a 5w20 engine?
If you put in 5W-30 oil instead of 5W-20 when the latter is the grade suggested by your vehicle's manufacturer, damage to internal engine parts can occur. Additionally, your engine may experience performance issues such as diminished fuel economy and horsepower.Is it OK to put 10w30 in a 5w20?
10W30 is thicker and protect older engine with its sealing capability. 5W20 is thinner multi-grade oil that is pertinent for quick starts in the lowest temperatures. In order to protect your car from internal damages, it is beneficial to use only specified engine oil by the manufacturers.Do jeeps need synthetic oil?
Synthetic oils will enhance the engine protection in older vehicles just as they do for new engines. Pennzoil synthetic oil does NOT void the warranty of your Chrysler, Jeep, Dodge or Ram and in fact Pennzoil synthetic is the recommended oil in all their vehicles.Will 5w20 hurt a 5w30 engine?
Swapping 5w20 for 5w30 would *not* be a good idea. If the manufacturer of your car doesn't spec 5W20 oil then you shouldn't use it. The oil will be too thin (the smaller the number the "thinner" the oil) to provide the needed protection for your engine.Does it matter what oil you put in your car?
There's no substitute for reading your owner's manual. It will list what type of oil the automaker recommends for your car. It may also recommend different oil depending on whether you live in a hot or cold climate. The most important thing is to use oil that's the right thickness, or viscosity, for your car's engine.Is 5w20 oil good for summer?
5w30 is by far the most common on the market. However, the lower viscosity version, 5w20, is also recommended by many vehicle manufacturers. 5w20 can provide better protection in climates with lower temperatures as the lower viscosity will improve oil movement in freezing conditions.Does engine oil make a difference?
Within reason, thicker oil generally seals better and maintains a better film of lubrication between moving parts. At the low-temperature end, oil has to be resistant to thickening so that it flows more easily to all the moving parts in your engine.Does Kia recommend synthetic oil?
The choice between conventional or synthetic motor oil is totally up to you, as Kias can take both and work just fine. However, we would highly recommend synthetic motor oil to allow your Kia to run the best and save money in the long run.What do the engine oil numbers mean?
The short answer: The numbers represent the viscosity of the oil and the W stands for WINTER. The long answer: The lower the number, the thinner the oil and the better the oil's cold temperature/ cold start performance. The number after the W describes how thick the oil is at the engine's normal operating temperature. 
