Is 5w30 good for summer?
5w30 is a great multigrade oil for use in low starting temperatures as well as high summer temperatures. It is also more fuel efficient since it creates less drag on the bearings and moving engine parts. 10w30 is thicker and may provide better sealing capability for older engines.
Will 5w40 hurt a 5w30 engine?
If you are racking your brain to choose between 5w30 and 5w40, we recommend you go with 5w30. However, if it is too expensive or not available for use, you can always go with the 5w40, which is just as good and will not cause any damage to the engine parts.
Should I use thicker oil in a high mileage engine?
The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well. … Over the decades of buying and driving older, high-mileage vehicles, I've even used 15W-40 and 20W-50 oils in high-mileage engines to improve oil pressure and extend their service life.
Can I mix 5w30 and 5w40 oil?
Mixing different oils will not improve the performance or efficiency of the engine in any way. The additives in synthetic oil may have limited or no effect at all when mixed with a regular engine oil. … You can use 1 litre of 5W30 mixed with 5W40 and it will not cause any sort of ill effects to the engine.
What happens if I use 5w30 instead of 5w40?
What would happen if I use 5w30 oil instead of 5w40 in my car engine? So long as the oil pump can produce enough pressure to get the oil flowing into all the important areas properly, there should be no problem. If the oil pressure light does not go on at idle you are likely not causing any damage.
What oil is thicker 5w30 or 10w40?
5w30 is less viscous while 10w40 is more viscous. The 5w30 has a viscosity of 30 at high temperature while a 10w40 has a 40 viscosity at high temperatures. … When at high temperatures, the 5w30 oil becomes thinner than the 10w40 oil since 30 is lower as compared to 40.
What is 5w 40 oil used for?
The main purpose of the motor oil is to protect your car by reducing friction and wear of the movable parts. A large variety of motor oils is available on the market. Out of which 5w30 and 5w40 are the most preferred choice of the people out here.
Can you put 5w 30 in a car that takes 5w 20?
Due to the increased resistance of the thicker 5W-30 oil, your engine will produce slightly lower fuel economy and horsepower output. You also risk engine damage when using 5W-30 instead of 5W-20, as the internal engine components are specifically designed to be used with 5W-20 motor oil.
Is 5w30 oil synthetic?
What is the difference between 5w30 and 5W30 synthetic motor oil? … But the base oil is different, with the synthetic being made of of molecules 100% saturated and designed to react to temperatures better. Mineral oils have viscosity improvers so a 5W can work as a 30 (if it is a 5W-30) at operating temperatures.
What does the W stand for in oil?
The "w" in motor oil stands for winter. The first number in the oil classification refers to a cold weather viscosity. The lower this number is, the less viscous your oil will be at low temperatures. For example, a 5W- motor oil will flow better at lower temperatures than a 15W- motor oil.
Can you mix different viscosity oils?
It is always advisable to not mix motor oil brands, however, different viscosity grades of the same brand motor oil are compatible. … But there's absolutely no danger about incompatibility resulting from mixing engine oils," Miller says. "We've tested all of our grades and brands, and we haven't observed any problems."
Can I mix engine oils?
According to Mobil Oil, it should be fine to mix oils. … Many oils are a blend of natural and synthetic oils. So, if you are low on oil, don't be afraid to add a quart or two of synthetic oil if you are using regular oil or even regular oil if you are using a synthetic.
Whats the difference between SAE 5w 30 and 5w 30?
5W-30. An oil rated 5W-30 is a multi-viscosity oil that can be used over a range of temperatures. The W stands for winter, and 5 is for 5 degrees Celsius, the lowest temperature at which the oil will pour. The number 30 means the oil will have a viscosity rating of 30 at 100 degrees Celsius.
Should I use high mileage oil or synthetic?
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 oil weight is thicker?
Numbers you find on different oil cans, such as SAE 30 or SAE 10W-30, are viscosity or weight numbers that indicate the thickness of the oil. The higher the number, the thicker is the oil.
Can I use 10w40 instead of 5w30?
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.
What is Dexos?
Dexos engine oil specification is designed by GM Powertrain engineers and is intended specifically for GM engines. Dexos is designed to increase fuel efficiency, extend the life of the vehicles emissions system, reduce oil changes and extend the life of the vehicle.
Can synthetic oil be used in any car?
Synthetic oil technology has improved over the years, and most cars on the road today should be able to use either synthetic or regular oil, so long as the proper weight is used. In fact, some new cars require synthetic oil. … The seals in those engines may not be able to handle the additives in synthetic oil.
Is 0w 30 thicker than 5w30?
Both will be -ABOUT- the same viscosity when at operating temperatures, but as the temperature of the oil drops, the 5W-30 will generally thicken more than the 0W-30 will. The difference generally gets more dramatic as temperatures fall toward freezing and below.
Is 5w 40 synthetic?
Product Description. Mobil 1™ 5W-40 is an advanced high performance synthetic engine oil designed to help provide outstanding wear protection, excellent cleaning power and outstanding overall performance.
What is Castrol EDGE Professional?
Castrol EDGE Oils. Castrol EDGE is our strongest engine oil. Advanced full synthetic, it has the strength to maintain a protective layer of oil between engine parts at all times.
What is ACEA oil classification?
ACEA (Association des Constructeurs Europeens d'Automobiles) represents the interests of European vehicle manufacturers within the EU. The ACEA specification tells you that an oil meets their standards. The performance of the oil is broken down in to different categories: A = Petrol. B = Diesel.
What is 15w 40 oil used for?
Mobil Gas Engine Oil 15W-40 is a premium fleet engine oil specifically formulated to provide reliable protection for trucks and buses using Compressed Natural Gas (CNG) or Liquefied Natural Gas (LNG). Mobil Gas Engine Oil 15W-40 is formulated from high quality base stocks and a balanced additive system.
What oil should I use in the winter?
An example is 5W30—the “W” stands for winter and the oil's cold weather rating. The lower the W number, the better the oil will perform in colder temperatures. Typically, a 5W oil is recommended for winter use, but synthetic oils can be formulated to flow even more easily when cold.
Can you put regular oil in a Volkswagen?
It is good for any 98 and up VW as you can use it longer and that keeps down maintenance costs. Switching to synthetic does not turn on the CEL. Use a top rated synthetic oil.
What does oil viscosity mean?
Viscosity is a measure of the resistance of a fluid's flow. The thicker (high viscosity) of an oil, the slower it will flow. … The lower the "W" number the better the oil's cold temperature performance. The 40 in a 10W-40 simply means that the oil must fall within certain viscosity limits at 100°C.
Which oil is better 5w30 or 10w30?
The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically.
How much oil does my car need?
Most engines require anywhere between 5 to 8 quarts of oil, depending on the engine size. The smaller the engine, the less oil required to fill the volume of the engine. A 4-cylinder engine usually requires around 5 quarts of oil.
Can you mix conventional and synthetic oil?
The simple answer: Yes. There is no danger mixing synthetic and conventional motor oil; however, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits. … So, yes, you can safely mix synthetic and conventional oil.
What does 5w30 mean?
In a 5W-30 for example, the number before the W describes the viscosity of the oil at low temperatures. 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.
What do oil grades mean?
Oil “weights” or grades—such as 10W-30—are actually a numerical coding system developed by the Society of Automotive Engineers (SAE) to grade oils based on their viscosity. Viscosity is measured by how long it takes a specific amount of oil to flow through a specific-sized opening at a specific temperature.
How often should I change my oil?
How often to change oil. According to research by Edmunds, most carmakers now recommend oil changes between 7,500 and 10,000 miles, although some specify 5,000-mile intervals. The type of engine oil, the age and make of your vehicle and driving habits dictate when to change engine oil.