Save my name, email, and website in this browser for the next time I comment. Car manufacturers, therefore, recommend using a thinner oil in cooling nozzles and pistons to improve its flow rate so that it can cool down the parts better. If the brand recommended by your OEM sells their 10w40 or 5w30 oil at a high price, its cool to find a cheaper universal equivalent of the same weight and specs. So as you can tell, theres a lot to think about when you change your oil as different ones work better for different things. It is advisable to use a 10w40 oil if the temperature of your city is below 30 degrees Fahrenheit. But, this is not applicable everytime as both the oil can sometimes be used in the same engine without any problem. Is 10w40 good for cars with higher mileage? Interchangeably. 15w40 vs. 10w30 Toyota This means the thickness of both oils is very different when the car is on and because of this, it can cause damage to the engine. The rest of the all other things are dissimilar to each other. It is essential to put the correct and recommended motor oil in your engine to do good for your engine. It is advisable to use a 10w40 oil if the temperature of your city is below 30 degrees Fahrenheit. It is a base engine oil. So, they wont be able to cool off the engine parts effectively. Let us see that what are those: If your car is way too old, by this I mean at least 15-20 years old, then you can use 10w40 instead of 5w30. However, 10w40 is better suited for hot weather or heavy loads. But, 10w40 is multi-weighted. Piston and cooling nozzles require increased oil flow. Its always best to check your vehicle owners manual before you switch out the oil just to be sure the engine can handle it. If anyone has a diagram of the i engineengine bay please post it here. The 10W40 oil and the 5w30 are so close yet so different engine oils. Here, we can see a number before the letter W and a number after the letter. Im a horticulturist by profession. A microsecond delay in ignition or spark timing could affect the performance of the entire engine. Price: 5w30 is more expensive, 10w40 is cheaper. Does Engine Oil Brand Matter? The second number is the operating temp viscosity (the number that matters most). Images that are not under our Copyrights are published with the respective owners authorization. 10w40 brings its best in relatively cold weather to manageable hot weather. It is also significant to mention that engine oils contain a variety of admixtures. Oils with a higher viscosity give more mileage so, from the previous calculations, 10w40 will give you higher mileage. Changing the oil in your engine can be a daunting task as its one of the many things that keep your engine running. The 5w30 motor oil is synthetic, and it has a viscosity of five (5) in low temperatures and thirty (30) in high temperatures. The manufacturer chooses and recommends motor oil grade for your car after a lot of research. However, 10w40 is suitable for hot weather or heavy loads. Furthermore, it is important to point out that engine oils are made with different additives. Yes. With various grades, there are so many different options available in engine oils. This will result in less fuel efficiency, less horsepower, and more engine damage because it will have to work harder to rotate. There are affiliate links on this article. Eventually, it will increase its operational capability in cold weather. It is synthetic motor oil. Like we humans, machines also need constant energy to make them function. Mixing different oil weights can cause damage to your engine sometimes. Therefore, 10w40 can be used when the engine is running and during the summer, while 5w20 can be used for cold starts and the winter. Answer: There is absolutely no need to switch to 10W-30 motor oil in the summer if 5W-30 is an acceptable grade for your engine . What Bad Will Happen if You Put 10W40 Instead of 5W30? 5w30 is synthetic motor oil. As a result, this multi-grade oil has minimal viscosity loss at a higher operating temperature. The former engine oil is thicker and clings on to the engine parts more. Even if you mix them in between, it would be best to stick to the same brand for both oils. Low power output per unit fuel consumption means low fuel mileage. (Answer Explained), Do You Know Who Makes Toyota Oil Filters? There are a lot of oil weights to choose from, but do all those numbers and letters have anything to do with how your engine will run? Car Brake System Parts Explained in Detail. But when choosing the viscosity, be guided not only by the mileage of your car, but also by the recommendations of the engine manufacturer. The first number, 10, tells us the cold temperature tolerance power of this oil. Since both oils have the same operating temperature viscosity (30) and additives, they will perform exactly the same. The recommended oil for all Toyota engines is 5w30 motor oil. Who is the new host of Dancing with the Stars? The quick answer is that it is not a good idea to switch out 10w40 instead of 5w30. It's the 2nd part of synthetic oil that protects your engine when the car is warm. The 5w30 however will give you better mileage if its older as its thinner. 60 is the thickest oil in general use, but there are racing grades that go to 70. On a quick note, you could actually use a different oil (not the recommended in your cars owners manual) and nothing would happen to your engine at least not that moment. There are some fully synthetic 10w40 viscosity motor oils on the market, but their cost is quite high and their use is not always paid for. Thus, 10w40 motor oil is preferable at a higher temperature since its viscosity at a low temperature is pretty high. The first number, 5 or 10 indicated on these oils stands for the viscosity, or how easily the oil pours at low temperatures. As lower temperature is not a matter of consideration for your lawnmowers oil requirement. First off, the viscosity and thickness of any motor oil are a tradeoff. Due to this, both of them can be used in the lawnmower. What happens if you put car oil in a lawnmower. There is even a special blurb in the manual that states that if you live in the desert, or tow regularly, or high temperature areas, you should run a higher viscosity oil. 5w30 and 10w40 are both good depending on how your engine is designed and the temperature in your location. But you can also bypass such conditions with 10w40 as it continues to deliver good performance even at 32F temperature. The letter w means winter. Because 10W40 is way thicker than 5W30. Instead, it happens due to the filter in such engines that makes the oils contaminant separate from the machines. So, whichever type of oil you use, it is vital to understand the grades first. The only problem that may lead to your mower is the higher viscosity, which will only happen if you belong from a higher temperature place. The difference between 10W-30 and a 10W-40 is the high temperature viscosity. It can run through critical engine parts without causing too much friction or engine wear. However, as its number suggests, it is much thinner than 10w40. Save my name, email, and website in this browser for the next time I comment. Andrey knows everything from warm-up to hard workout. Its higher viscosity at running temperature can reduce engine effectiveness as it'll need more energy to keep the engine operating. Using 10w40 instead of 5w30 is not always a bad decision. Also read: Does Engine Oil Brand Matter? A "30" high temperature viscosity grade is common (as in 5W-30, 10W-30, etc) and is suited to many engines. We can say this one will provide higher mileage than 5W30. If the recommended oil is 5w30, stick to that; however, you may not use the exact recommended brand, and its okay. The reason why your engine might overheat is simply due to the increased amount of friction offered by mating parts to each other. The recommended oil viscosity for your vehicle, according to Kia's documentation, is 10W-40. As a result, it will have an increased fuel economy. Here, the lower the number, the thinner the oil. That is to say, the engine that runs a car will generally look for a different kind of oil than the engine which runs outdoor equipment like lawnmowers. Because the gasoline in 5w30 is thinner and more able to reach the tough parts of the engine than the fuel in 10w30, 5w30 is more efficient and less viscous. 5w30 is thinner than 10w40. So, it will face less friction with the engine parts and get a boost in fuel efficiency. No, you cannot put 10w40 instead of 5w30 under normal conditions. The 5W-40 is inferior in viscosity, due to the reduced winter coefficient. So, by now, you have got a brief idea about the oil requirements of the lawnmowers engines. The 5w30 motor oil is thinner than the 10w40 motor oil. Yes, 10w40 oil can be used for lawnmowers and get away without having any problem. Being a thicker oil 10W40 can harm your engine if your engine requires a thinner oil. But you could reap the benefits of using a thick engine oil nonetheless. You should also know that the type of oil you choose is just as important. Also, it will cause wear and tear of the engine parts. Hence, you will feel a lag in performance. The 0w40 finds extensive use in European vehicle models due to the continent's coldness, which at times border to the extreme. They act smoother in such kinds of engines and are used as the alternatives of 10w30. It is because not every part of the car, especially the engine, requires the same level of thickness or viscosity. The automobile manufacturers are persuading engineers to increase the fuel economy so that they will meet the regulations of the government and so that they can also provide an edge to their competitors. Some engines might pose problems like overheating, excessive wear and tear, and poor performance if thicker engine oil is used. Are There Any Situations When You Can Put 10W40 Instead of 5W30? Can You Use Regular Gas In Lawn Mower Engines? How would you describe an honorable person? Again, 10w30 can also be used as the best multi-purpose oil as the oil acts like SAE 30 during 100 Celsius. This is because a thinner oil like the 5w30 motor oil will be providing less friction to the engine. If it is recommended to pour only 5w-30 into your car, you should not pour 10w-40, and vice versa. 5w40 oil is not thicker has it has a higher viscosity. There is no recommendation about the 10w40 motor oil for Toyota engines, but you can still use it if you want. Viscosity improvers help the oil thicken in high temperatures but this does not improve the lubrication of the oil in any way. If your motorcycle requires a 10W40 engine oil, there is no need to go for 5W40 oil. Contents Do not use 10w-40 instead of 5w-30 Yes, we know that every auto mechanic can have a different opinion on this. People are also confused if it is right to change them both. As stated above, be sure to keep an ear out for any unusual noises. Also, the thickness or viscosity is known as the weight of the liquid. This depends on so many things. In choosing the right motor oil for your vehicles engine, there are a lot of choices. 10w40 and SAE 30 are two different oils with different kinds of engine requirements. 2023 Car, Truck and Vehicle How To Guides - Vehicle Freak. People sometimes forget that the viscosity of oil looks at both the thickness and thinness of that oil. Can You Buy a Random Brand? If you use 10W40 oil during periods of a cold engine running, the molecules of this specific oil might be too big to enter between the metal parts of the engine for proper lubrication, hence leading to damage. Similarly the oil viscosity will be higher and oil thicker than specified during summers. 5w30 vs. 10w40 Engine Oil: Differences and Can You Swap Them? How to choose 0w-20 engine oil for your car? After that, it is pretty much the same as 10w40. In addition, using thicker oil like the 10w40 motor oil will also provide the engine parts a lot of lubrication. Can I put 10w40 instead of 5w30. Hence, using thicker oil will go heavier on your pocket as well. Whats the Difference Between 10W40 and 5W30? (Ans Explained), Do You Know Who Makes SuperTech Oil Filters? How many deaths are caused by flu each year? Also, both these motor oil feature different viscosity levels and are suitable for working under different temperatures. 5w30 has lower viscosity hence it is suitable to use in hot or lower temperatures. So, using one in place of another isnt practical either. This will also lower the performance of the vehicle and lower the effectiveness of the oil. The best oil for your engine is the one specified by the manufacturer. Again, if you get away from the regular oiling schedule and try something new for your lawnmower, then 10w40 is indeed a great choice! On the other hand, the 10w40 motor oils viscosity is forty (40) in high temperatures. In contrast, the liquid-cooled system of vehicles acts basically as the cleaner. If it's Winter, 10W30 would make your engine perform sluggishly as the thick oil would struggle to lubricate the engine components. Weve seen many car owners swap out their 5w30 engine oil for 10w40 engine oil. This means that the 10w40 motor oil will cling to the engines moving parts more than the low viscosity of the 5w30 motor oil. Besides, the oil will get clogged and lose its efficiency to work. This is why its best not to mix oils as you will essentially be left with an oil that cannot do its job in hot temperatures and eventually at all. 5w30 oils are specified for most modern engines, and while its really good, it is not preeminent to other oils. The quick answer is that it is not a good idea to switch out 10w40 instead of 5w30. 5W30 vs 10W30 Whats The Difference? Which offers low friction and does not freeze in cold temperatures. This motor oil is much better to use in hot weather. What oil is better for summer conditions? For northern regions, low winter temperatures better suit 5w30, but it all depends on the loss of fluidity temperature and the dynamic viscosity of a particular oil brand. (Answer Explained), Do You Know Who Makes Amazon Oil? So, SAE isthe most recommended kind of oil for your lawnmower. OTOH, the oil has a pour point of -39 (F and C are the same at -40), and will still pump with ease. 10w40 is most used in hot weather or heavy loads. The 5w30 motor oil has a viscosity of thirty (30) in high temperatures. Applying thicker oil such as 10w40 on these parts will slow down the flow speed. The first number refers to viscosity at low temperature and the second number, which sits after w, refers to the viscosity level at a higher or warm temperature. For example, 10w30 synthetic motor oil might work better than conventional 10W-40 oil to protect your engine pistons and bearing. If you need a 10w-40, you can use 5w-40. 5w30 vs. 10w40 Nissan The recommended oil for all Toyota engines is 5w30 motor oil. High mileage 10w40, engine new 5w30, but first of all we look at the recommendation of the engine manufacturer. Higher viscosity means more wear and tear in your engine. The oils quality is higher enough that it can be used seamlessly in your mower without a problem. Also, with higher viscosity, it will have a decreased flow rate. It is always best to follow the user manual for the optimal performance of your car and its engine. F1 Fuel Cost: How Much Does It Cost To Fill F1? The W itself stands for Winter and designates how oil will behave while cold. So, your car may experience inconsistency. Choosing the right engine oil weight becomes difficult as there are plenty of confusing choices. Schematicdiagram of i engine. Whichever oil you choose from above, it is strictly advised to understand the owners manual engine oil recommendations. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,100],'yourgreatcar_com-box-4','ezslot_14',626,'0','0'])};__ez_fad_position('div-gpt-ad-yourgreatcar_com-box-4-0');If you go deeper into the names of these engine oils, then you would know that the first number in their code represents the cold viscosity and the second number represents their hot viscosity. A 10w-40 is better at around 6 times thicker and a 0w-40 is much better at about 4 times thicker. However, the motor oil 10w40 motor oil is not on the recommendation list. But 10w40 is suited for hot weather or heavy loads. Likewise, 10w30 oil will take hours to combust in winters. Hi, this is Clara Lee co-founder of this beautiful website. Thus, it protects various parts of your cars engine in colder temperatures. The viscosity and thickness of any engine oil are always a compromise. A 5w30 motor oil is best used for high mileage vehicles. Will 10w40 hurt a 5w30 engine? It works excellent and provides the best mileage in colder temperatures.