Which oil is thicker 5w30 or 5w40?

Which oil is thicker 5w30 or 5w40?

If motor oil is thick, then it is more viscous. If the oil is thinner, it has a lower viscosity. … 5w30 and 5w40 motor oils have the number 5 which is then followed by W. W represents winter and not weight. ​The oils therefore have the same viscosity in winter, which is 5 and relatively low.

Can I use 5w40 instead of 10w40?

10w40 is a slightly thicker (viscosity) oil than 5w40, a lower viscosity oil protects better from cold, it's also recommended for new engines with very tight tolerances, but pour it into an older engine and the piston rings will struggle to keep it out of the combustion chamber and you'll burn oil.

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.

What happens if you use the wrong oil in your car?

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.

Can I mix engine oil viscosity?

"Yes. It is always advisable to not mix motor oil brands, however, different viscosity grades of the same brand motor oil are compatible.

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.

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.

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 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 is the difference between 5w 40 and 10w 40?

10W-40 is a bit thicker than 5W-40 but is still rather thin and works well to lubricate the moving parts of an engine during start-up. This oil's number "40" means it will be a little thicker than average while exposed to the heat of a running engine.

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.

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.

Will engine oil expire?

Does motor oil expire? Under optimal conditions (stored in the original, unopened containers at moderate temperatures), motor oil usually remains stable for an extended period of time. … That said, an engine oil's properties are best if it is used within two years.

Can I mix fully synthetic oils?

Yes, you can safely mix one brand of oil (e.g. Mobil 1) with a different brand (e.g. AMSOIL) or conventional oil with synthetic oil (in fact, that's what a synthetic blend is). Most synthetics today are fully compatible with conventional oils and can safely be mixed.

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.

Is it OK to mix engine oil?

According to Mobil Oil, it should be fine to mix 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.

What does SAE stand for?

SAE stands for the Society of Automotive Engineers. The SAE was founded in 1905 by Andrew Ricker and Henry Ford. At the outset, its sole aim was to provide an umbrella organization for the scattered automotive engineers who usually worked alone in various parts of the country.

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.

Can you mix semi synthetic oil with fully synthetic oil?

As a general rule of thumb, we don't recommend mixing different oils. … However nothing detrimental will occur if you mix synthetic oil with either semi-synthetic or mineral oil. If this was your only option, mixing oils would be better than running out of oil and potentially causing damage to your engine.

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.

Can you mix 5w30 and 5w20 oil?

Can I mix 5W20 oil with 5W30 oil? Yes, you can. It is best if they are from the same brand and level of API service to be the same formulas, but they are certainly compatible, even if different formulas and brands.

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.

How much oil do I put in my car?

Make sure that you are using the correct oil for your car. To get an idea of how much oil you need; the gap between the marks on the dipstick usually represents around 1 litre of oil, so you know that if your oil mark was at the minimum, you need around a litre to top it up.

Which engine oil is best for Ford Fiesta?

The best engine oil for the Ford Fiesta is 10W40 semi-synthetic grade oil.

What is 0w30 oil?

A 0W-30 low viscosity oil can be used where a 5W-30 or 10W-30 is recommended. Switching to a Mobil™ 0W-30 motor oil can help improve fuel economy because of the lower friction properties offered by this full synthetic formulation.

What is synthetic car oil?

Synthetic oil is nonetheless oil, though it is somewhat man-made. Synthetic oil is made from a base oil, powder additives, and a carrier oil that enforces an even distribution of the additives. Both synthetic oil and traditional motor oil are made from refining oil.

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 VW 507 00 engine oil?

Mobil 1™ ESP Formula 5W-30 is a fully synthetic low ash oil approved by Volkswagen for petrol cars requiring the VW 504 00 oil standard and approved for diesel cars requiring the VW 507 00 oil standard.

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.

What is 5w40 oil?

The number before the 'W' is the 'cold' viscosity rating of the oil, and the number after the 'W' is the 'hot' viscosity rating. So a 5W40 oil is one that behaves like a 5-rated single grade oil when cold, but doesn't thin any more than a 40-rated single grade oil when hot.

What 5w 40 oil means?

The two numbers in the 5W-40 indicate the weight or viscosity of the engine oil as tested by SAE. Viscosity is defined as a fluid's resistance to flow: The higher the number, the higher the fluid's resistance to flow, or the thicker the fluid. … The "W" indicates that the first number is the "cold" or "winter" rating.