- available in conventional (5W-20, 5W-30) and synthetic (0W-20) grades
- specially developed to offer the best corrosion protection and minimize engine wear
- in harsh temperature conditions, protects against cold starts
The Mitsubishi Genuine Full Synthetic 0W-20 oil is specifically designed to offer the highest level of protection against corrosion, lessen engine wear, fight the formation of sludge and other deposits, and enhance fuel efficiency. A wide variety of ambient temperatures are possible thanks to special additives, which also guard against cold starts during severe weather. The premium engine oils 5W-20 and 5W-30, which offer protection against a variety of weather situations, protection against low temperature starts, and improved fuel economy, are created using the best quality oils and cutting-edge additive systems.
For the correct replacement schedule for your Mitsubishi vehicle, please refer to your owner’s manual.
In This Article...
Can 5W-30 be used in place of 5W 20?
It is generally not advised to substitute 5w30 oil (or any other oil weight) for 5w20 oil because even a small viscosity change has the potential to harm your engine.
Can I use 5W-40 for 5W-30?
This essentially indicates that each oil is equally viscous at lower temperatures and will remain so at a temperature of 30C, but that 5w40 oil operates better at higher temperatures than 5w30 oil, being effective up to ambient temperatures of 50C as opposed to 30C.
In comparison to, say, 10w40 oils, 5w40 and 5w30 motor oils have winter viscosity grades of five, making them effective down to temperatures of -30C and more viscous at extremely low temperatures.
As a result, 5w40 oils are probably utilized in higher-performance engines that operate at higher temperatures and loads than usual, such as those used in vehicles driven in metropolitan environments, which frequently sit in traffic, or in vehicles traveling at very high speeds, for example.
5w30 oils are a fantastic option if your vehicle is not made to be driven at a high rate of speed or if you drive more cautiously and sustainably. These typically perform better for certain engine parts like oil pumps, can clean the engine better, and have longer lives because they operate at lower temperatures.
Low-Shear-Rate Viscosity for 5w30 and 5w40
At 100g, the viscosity of 40 ranges from 12.5 to 16.3 mm2/s. At 100g, the operating viscosity of 30 ranges from 9.3 to 12.5 mm2/s. Both oils are 5 grade while they are cold, however at operating temperatures, 5w30 becomes 30 grade and 5w40 becomes 40 grade. With greater temperatures in the summer, 5w40 has a higher viscosity than 5w30, which aids in the motor’s continual operation.
High-Shear Rate Viscosity
This value is a minimum of 3.5 at 150g for a working viscosity of 40. The value of this parameter at 150g must be at least 2.9 for a working viscosity of 30. This indicator largely reveals how much the oil can withstand under harsh loads.
Application
Although it may be utilized by various types of cars and in a variety of temperatures, 5w30 is best in colder climates. Higher mileage engines frequently employ 5w40, which operates better in warmer climates.
Will using the incorrect oil harm my engine?
Although the brand of motor oil you use is important, the viscosity grade is more important. There are different engine oil grades (5W-30, 15W-40, 10W-30, etc.), each of which is created for a particular type of engine.
Some viscosities are suitable for cold areas, while others work better in warmer environments. Your car’s engine can run as long as feasible with the proper engine oil. Use the suggested oil, whether conventional, synthetic, or of a different viscosity, for the engine’s greatest performance and protection.
Because of this, it’s always advisable to abide by the manufacturer’s instructions while topping off your oil because awful things always happen when these instructions are disregarded. You should abide by the instructions in your owner’s manual to avoid oil leaks, overheating, decreased fuel efficiency, and damaged engines. Below is further information on these symptoms in more detail.
Oil leaks
Since different synthetic engine oils will have different flow characteristics, using the incorrect engine oil can result in oil leaks. You may detect a leak under your car or where it is parked. Older cars from the 1960s and 1970s or those with high mileage utilize heavier oil to assist seal and safeguard the engine. Modern automobiles, on the other hand, are made to consume thinner oil.
Gaskets and seals may leak if synthetic oil is used in place of conventional oil in an older or vehicle with a greater mileage. It won’t offer the necessary lubrication and protection if it’s too thin. The mess that results from an oil leak must be immediately fixed.
Engine overheating
If you don’t use the proper oil for your engine, overheating could result. In addition to lubricating the engine’s components, engine oil also absorbs some of the heat generated by the engine to prevent any of the components from overheating.
Contrary to the manufacturer’s advice, using a heavier oil can reduce flow and impair the oil’s capacity to maintain thermal balance. The resistance and heat generated for the incorrect application increase with oil thickness.
Reduced fuel economy
After an oil change, your fuel economy may have decreased, which could be the result of using the incorrect oil. Utilizing engine oil that is excessively thick or has a greater viscosity than what is advised can impact a vehicle’s fuel economy.
The energy required to pump an oil with a high viscosity will increase fuel consumption. Your engine will have to burn more fuel in order to overcome the increased resistance on the moving parts. The efficiency of the engine should increase if the oil is switched to one that is a little bit thinner. Use the weight and kind that are suited for your vehicle.
Cause damage to engine life
The incorrect engine oil can harm an engine by improperly lubricating its parts. As a result, there will be metal-on-metal contact between the moving pieces. Soon after, friction develops, leading to engine component wear. Additionally, it might harm your engine’s pistons, oil pump, cylinder wall, bearings, and other parts. This will thus limit the engine’s life and almost probably result in an engine failure.
What happens if you fill your car with the incorrect oil?
Because using the incorrect oil can create leaks, you might see a few oil stains in your garage or under your car, or you might smell burning when driving. Engine parts may not be adequately lubricated if the oil isn’t performing as it should, resulting in friction and the potential for burning the oil. This is unquestionably a red flag that needs to be addressed right away.
The fact that you feel like you need to fill up the automobile more frequently may possibly be related to the oil. Your engine will have to work harder and burn gasoline more quickly if the oil you’ve used is too heavy and thick to function properly.
What to do about it
If you put the wrong kind of oil in your engine, your car may still operate, and you may be able to drive it until your next service, but we don’t advise it. If you discover that you accidentally used the wrong product or if you experience any of the symptoms we’ve discussed, you should have your car checked out and have the oil changed to prevent long-term harm.
What about 5w40 for diesel engines?
For modern diesel engines running in demanding applications, Mobil 1TM Turbo Diesel Truck 5W-40 full synthetic performance heavy-duty diesel engine oil helps prolong engine life while delivering long drain capability and fuel economy benefits.
All super-high-performance diesel applications, including contemporary low-emission engine designs with Exhaust Gas Recirculation, are advised to use Mobil 1 Turbo Diesel Truck 5W-40 engine oil (EGR). Among these applications are:
- engines for use on public roads that can operate in stop-and-go and high-speed/high-load scenarios
- Engines for off-road vehicles working under very low-speed/heavy load conditions
- Almost all diesel-powered machinery produced by American, European, and Japanese machinery manufacturers
- mixed fleets and high-performance gasoline engines
- units for refrigeration
Many contemporary, low-emission diesel engines operate at higher temperatures and produce more soot than earlier models. As a result, there is a greatly increased need for high-performance lubricants. As a result of today’s tighter engine designs, less fresh oil is needed to replenish depleted additives. Because top piston rings are taller, the oil film is situated nearer to the combustion chamber and is subjected to strong thermal stresses. Compared to competing high-performance diesel engine oils, Mobil 1 Turbo Diesel Truck 5W-40 engine oil helps retain exceptional performance at substantially greater temperatures. Additionally, it is completely compatible with regular oils. Its long drain capability aids in boosting operational effectiveness and cutting costs overall.
Please read the limited Mobil 1TM warranty. The manufacturer’s suggested oil viscosity grade, API service classification, and any builder approval are all listed in your owner’s handbook.
Follow the oil-life sensor on your car or the suggested oil-change schedule in your owner’s handbook if your car is under warranty. To maintain efficient operation, proper maintenance procedures are needed, including routinely checking the oil level to make sure the right amount of oil is present.
When ought I to apply 5w40?
Because it flows more smoothly at low temperatures, 5w40 is preferable for starting your engine. High viscosities of 5w40 and 10w40 when the engine is hot and running make them both equally effective in preventing engine wear.