Can I use 10W40 instead of 5W30?
No, you should not use 10w40 instead of 5w30. 5w30 is thinner oil specialized for colder weather. Whereas, 10w40 is way thicker which is suitable for warm weather. Applying 10w40 instead of 5w30 will decrease the engine’s efficiency. It’ll create engine wear and friction, which will damage the engine quickly. Still not sure? Relax! This isn’t all.
How much does motor oil weigh?
There are many factors which can influence the weight of oil, including the storage temperature, density, and pressure. Motor oil which has been recycled will weigh around 7 pounds (3.17 kg) per gallon. Crude oil will weigh approximately 7.18 pounds (3.26 kg) per gallon.
What is SAE 40 oil?
SAE 40. MOTOREX REGULAR SAE 40 is a mineral-oil-based monograde motor oil with minimal additives. It forms an oil mist during operation, which lubricates all lubrication points that are not supplied with oil via oil splash lubrication. Its strong adhesive power guarantees excellent emergency lubrication.
What is the thickness of motor oil?
The thickest motor oil readily available on the market is 40W70. This oil is made for antique cars with diesel engines that burn oil excessively. The thickness of oil is more commonly referred to as viscosity grade. The higher the number, the more resistance the oil exhibits.
Is 10w 40 same as SAE 40?
This is often regarded as the engine's operating temperature. The higher the number, the more viscous or thicker, the oil is at higher temperatures. This means that at 100oC, 10W30 engine oil has the viscosity of an SAE 30 single grade oil, and 10W40 oil has SAE 40 viscosity.29-Oct-2021
What is straight weight oil?
Straight-weight oils are lubricants that have a set viscosity, a single grade. SAE50 is higher viscosity (thicker) than SAE40, and so on. ... Because oil gets thinner as it heats up. Or you could say it gets thicker when it cools down. Say your engine needs 30-weight oil when it is running at operating temperature.14-Nov-2019
What is 40W oil used for?
Pressure. Thicker, 40W oils increase the oil pressure of the engine by their very nature, as opposed to the lighter, more flowing 30W oils. But, lighter, more flowing oils cause less dry-running in the engine, and therefore less wear and tear.
Which is better SAE 30 or SAE 40?
SAE 40 oil is a slightly thicker oil than SAE 30 and will thin out slower at high temperatures.27-Oct-2021
What is 50 weight oil used for?
Lucas Synthetic 50 WT contains an exclusive additive concentrate derived from synthetic oil that ensures lower operating temperatures and better lubrication, especially to upper bearings and gears.
What is 30 weight oil used for?
Use. SAE 30 oil is typically used for smaller air-cooled engines, like the ones in small tractors, lawnmowers, and chain saws. Most motor oils today are multi-grade oils that will perform well in all seasons.24-Apr-2017
Is 40 weight oil thick?
The 40 rating: A 40 weight oil will be thicker than a 30 weight oil at engine operating temperature.27-Oct-2021
Can you use 40 weight oil in a lawn mower?
SAE 30 motor oil is commonly recommended for use in a lawn mower engine, but the safest best is to use the type of oil your lawn mower manufacturer recommends. Often 10W-30 or 10W-40, the same motor oil types that are used in vehicles, can also be used in a lawn mower.
What is the difference between 5 40 and 10W-40 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).01-Apr-2020
Can I use 15W40 instead of SAE 40?
In tropical weather, most OEMs still recommend multi-grade products, such as SAE 15W-40, because the lubricant flows faster through the engine than a pure SAE 40 even at higher ambient temperatures. ... You may also decide to use a synthetic lubricant with the same viscosity and quality claims.28-Jan-2020
What is SAE 40 engine oil?
MOTOREX REGULAR SAE 40 is a mineral-oil-based monograde motor oil with minimal additives. It forms an oil mist during operation, which lubricates all lubrication points that are not supplied with oil via oil splash lubrication. Its strong adhesive power guarantees excellent emergency lubrication.
Can I mix SAE 30 with SAE 40?
Yes, particularly in a hot country, sae40 may even be better than the normal sae30. . . But yes you can mix them no problem. . . Providing they are both the same type and brand of Oil. Engines have no brains-they don't know the difference. Mixing 30 with 40 is alright.
What is multi grade oil?
Multi-grade is then, simply, advanced motor oil that can transform the viscosity depending on the operating temperature to most optimally run your engine. You would want low viscosity (easy to flow, like water) when you are cold, and higher viscosity (hard to flow, like honey) when you are hot.
What is the difference between single grade and multi grade oil?
So what is the difference between single-grade and multi-grade oil? Single-grade oil worked great when the application did not demand for wide temperature ranges, like cars. An engine from an automobile will see extreme temperature change. If you live in Kodiak, Alaska, and start your car, the engine may be at -30F, so is the motor oil inside. When you drive down to a store, thanks to thermostat and combustion heating, the engine might warm to 180F, so does the oil inside. That is 210F change in temperature! As you can see, if single-grade oil was used in such application that was designed to perform only at -30F, engine will likely to seize or detrimental wear could occur at 210F, and vice versa, assuming no Polytron MTC oil additive has been applied.
How hot does the oil change in a car when driving down to a store?
When you drive down to a store, thanks to thermostat and combustion heating, the engine might warm to 180F, so does the oil inside. That is 210F change in temperature!
What does 10W-30 mean?
“W” stands for “winter.” When oil grades are hyphenated (i.e. 10W-30), this indicates range of viscosity attainable with this particular oil, namely it behaves like 10 weight oil (less viscous) when it is cold or “winter” and thanks to viscosity modifiers (manufacturer added oil additives), it will behave like 30 weight oil (more viscous) when hot.
Is 5W oil winter grade?
It is correct to say 20 weight oil for 20; 5W shall be called 5 weight winter-grade oil. Yes, that W remains “winter” no matter what.
Can you make multi grade oil without VII?
It is possible to make multi-grade oil without VIIs. If this happens, it is allowed to be sold as either single-grade extremes, such as 20W-20 without VII, can be sold as 20W single-grade or 20 weight single-grade.
What is the difference between 40W and 30W oil?
Consumption. In high-mileage engines, 40W oils create a lower oil consumption than 30W oils, which is less wearing on the engine, requires less frequent oil changes and top-ups and is less expensive in the longterm.
What is 30W oil?
Oils with a 30W grade viscosity are more lightweight, contain more friction-reducing additives to improve fuel economy and allow more efficient engine startup even in cold conditions.
Why is 30W oil not good for cold?
Straight 30W and 40W oils are not suited to cold temperatures either, because they are too thick in general. Even the thinner 30W oil needs additional work to help it function at an optimal efficiency in low temperatures. They are too thick to provide adequate lubrication for startup.
Does 30W oil have additives?
Often, 30W motor oils contain a slightly higher quantity of viscosity-improving additives to create a thinner texture. These additives have their drawbacks. In high temperatures and pressures they "shear" or break apart, and can create a detrimental sludge, which reduces the engine's performance. Once the oil has begun this process ...
freightlinerman Road Train Member
I read an interesting post regarding the use of straight SAE 40 vs 15W40 in 4 stroke engines. Apparently, the use of straight 40 provides better lubrication and wear protection.
bender Road Train Member
It's already been done and proven, 15-40 in four strokes is the ticket, straight 40 in detroit two strokes. No need to reinvent the wheel at such high cost to the little guy.
freightlinerman Road Train Member
Thanks for the info, while 15W40 may be the ticket I'm still very curious to see results on paper. I would just be curious to see how fuel economy and wear patterns change. If there is one volunteer out there, that would be awesome. By the way, at a local oil distributor I picked up a 5 gallon pail of Rubia S SAE 40 for $45.00.
MNdriver Road Train Member
I've been with Specialized for over a year now and couldn't be happier. Nothing is perfect but they do their best for drivers. They also pay the best! I am always home when I say I need to be and if I have a doctor's appointment, they've never missed one.
freightlinerman Road Train Member
If you're curious as to why I don't do it myself, one I don't drive commercially, I'm currently in the military. I have an 8V71N, 6V92T and a 11.1 Series 60 in three different private vehicles. I do not drive them regularly to get an accurate analysis.
bender Road Train Member
I have seen first hand how oil consumption drastically increases in a healthy two stroke Detroit when switched to 15-40 by mistake.
Starline Medium Load Member
At 18 grand for an engine and you want me to put 40 w in my engine to see if there will be any wear or damage to satisfy your curiosity..?
What is multi viscosity oil?
Multi-viscosity oils use chemicals called viscosity index improvers to allow the oil to flow differently at different temperatures. For example, they allow a 20W-50 oil to behave like a 20-weight oil when cold and a 50-weight oil when warm. As we’ve seen, this improves the oil’s ability to flow at startup, which maximizes wear protection.
What does the number 5W-50 mean?
The first number refers to its viscosity, or resistance to flow, when cold (e.g. 5W). Think of the “W” as standing for “winter.”. The lower the number, the faster the oil will flow when cold, meaning a 5W-50 oil will flow faster at startup than a 20W-50 oil.
Does AMSOIL oil shear?
As said, some oils can shear in the face of the severe conditions your engine can endure, leaving it vulnerable to wear. At AMSOIL, we use premium base oils and additives in our formulations . They resist viscosity loss due to heat and mechanical shear to deliver reliable wear protection for your engine.
Can a viscosity index improver shear?
Low-quality viscosity index improvers, however, can shear under stress. That means the pressure, stress and heat of the crankshaft, cam, pistons and other components churning at several thousand rpm can literally tear apart, or shear, these additives.
