For example, the 10w40 motor oil will cling to the moving part of the engine more than the 5w30 motor oil. In summary, people interchange 5w30 motor oil and 10w40 motor oil. (Explained), 6.0 Powerstroke Towing Capacity | Everything You Should Know, 7 Easy Solutions For Hydra Tuner Problems On 7.3 Powerstroke, 6.0L Powerstroke Injection Control Pressure Problems Troubleshooting. So now, let us differentiate the 5w30 motor oil and the 10w40 motor oil in terms of viscosity, hot weather, and fuel economy. Transmission oil is essential to keep your automatic, Read More Dexron 3 vs. Dexron 6: Comparison and DetailsContinue, As an Amazon Associate, I earn from qualifying purchases. Let us get started. Then you can decide whether 10w40 over 10w30 is OK for your lawnmower or not. Can I Mix 10w30 and 5w30? Both of these oils have their differences and their similarities. Choosing the right engine oil weight becomes difficult as there are plenty of confusing choices. You may become confused due to the many differences between the oil requirement of two of these engines. Its usually best to use thicker oils such as 10w40 for high-mileage vehicles. The 5w40 oil most often has a higher viscosity index (it doesnt change viscosity so much when the temperature changes) than the 10w40, so it has higher viscosity at high temperatures. 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. Yes. 0w40 vs. 5w40 Viscosity When looking at engine lubricants, viscosity is a critical factor. Im a horticulturist by profession. Two numbers define the viscosity of motor oil at their naming. However because the number after the W changes, this is slightly trickier. After that, it is pretty much the same as 10w40. Both liquid and thick engine oil are needed for optimal performance of the car. Thus, if you reside in a below-zero climate, go for 5w20 oils. Always try to stick with single multi-graded engine oil. So its always best to go by the manual and use what your car manufacturer suggests. Before choosing an oil, check the cars manual, it is necessary to use the one recommended by the manufacturer. For assumption, you can use 5W30 for 7,000 to 8,000 miles. And these temperatures are present on the cylinder walls and on the exhaust valve stems. (Answer Explained), Do You Know Who Makes Toyota Oil Filters? They have, Read More Do You Know Who Makes Polaris Oil? Also, from the number, we get that at low temperature, 5w10 has a viscosity rating of only 5, which is half the viscosity of 10w40 at low temperature. How many deaths are caused by flu each year? (Answer Explained). It offers higher friction and instead of reducing the wear and tear of moving parts, it enhances it. If you use 10w40 in place of 5w30, it won't perform as well as 5w30 in low temperatures. The recommended oil for all Toyota engines is 5w30 motor oil. Since you would not have to worry about engine performance and fuel mileage. The reason is engine-specific; that is to say, auto engines are designed to use motor oils of different weights or viscosity. 10W-40 is recommended for cars that have more than 150,000 miles and is often a conventional oil. Can I Use 5w20 Instead Of 5w30 on Toyota? Critical engine parameters like spark timing, valve timing, and timing chain adjustment will be disturbed if you use 10w40 instead of 5w30. Although both of the oil have nearby numbers mentioned, they still have differences. What happens if you put car oil in a lawnmower. (Answer Explained). The cold viscosity is referring to the thickness of the oil upon a cold start of the engine. So, using one in place of another isnt practical either. This can cause damage to your engine because a 10w40 oil wont be efficient and lubricate the engine moving parts as supposed at such low temps. There are affiliate links on this article. 5w30 is synthetic motor oil. The number after the W is how thick the oil is when your engine is running and up to temperature. Read also >> Is it ok to use 10w40 instead of 10w30? Basically, oil specifications by engine manufacturers are a tradeoff, your engine might even perform better with an oil type not recommended by your car engine maker. Accidentally Used 5w40 Instead of 10w40: Is It Ok? Although, most peoples viscosity considers only the thickness of the oil. In some rare cases, 10w30 may cause engine overheating in extremely cold temps. Will 10w40 hurt a 5w30 engine? [Detailed] Can I Use 10w40 Instead Of 5w30 +Other FAQs - Auto car need But these numbers can sometimes be misleading. The last number, 40, tells us the hot temperature tolerance power of this oil. What Bad Will Happen if You Put 10W40 Instead of 5W30? Moreover, the oil would get thicker and could not reach all the components when you start the engine. We can say this one will provide higher mileage than 5W30. Lots of people trust aftermarket parts more than, Read More Do You Know Who Makes Toyota Oil Filters? However, 10w40 is suitable for hot weather or heavy loads. Which offers low friction and does not freeze in cold temperatures. There are also so many different factors that go into what oil you should use including different weights working better in different temperatures. The lower the number, the thinner the oil and therefore the better it will flow. 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. Autocareaids.com is a participant in the Amazon Services LLC Associates Program. When more power is consumed to keep the pistons moving, then a low amount of power is available at the output shaft. Here are some more articles for you to check out: 20W50 vs 10W40 Oil: Whats the Difference and Which Is Better? 5. A lawnmower generally runs by a sort of engine that has anair-cooled system attached to It. It depends on a lot of things. On the other hand, a 10w40 motor oil is recommended to be used for high mileage vehicles. And when it happens, you need to replace the part, and car parts arent cheap. 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. It may be harmful to your car and the engine. Andrey knows everything from warm-up to hard workout. So, whichever type of oil you use, it is vital to understand the grades first. Whats the difference between sae 5w-20 and sae 5w-30? One such case is with 10w40 and 5w30. The second number is the operating temp viscosity (the number that matters most). It should be clear that a car needs both thin and thick motor oil for optimal performance. 10W40 engine oil will hurt 5W30 engines. Apart from different weights, there are also four different types of oils which are synthetic, semi-synthetic, racing, and conventional. Even if you mix them in between, it would be best to stick to the same brand for both oils. 10w40 motor oil is not recommended for Nissan engines. However, as its number suggests, it is much thinner than 10w40. The 5W40 oil flows a lot easier when cold than the 10W40 oil. This is because not every part of the car, especially the engine, requires the same level of thickness or viscosity. But that is only under specific kinds of circumstances. Using 10w40 instead of 5w30 is not always a bad decision. Then, after calculation, they choose the motor oil that has the least tradeoff so that your car gets the maximum profit. Furthermore, it is important to point out that engine oils are made with different additives. Multi-grade oils could stay as close to the optimum viscosity over a range of temperatures not too thick when it is cold and not too thin when it is hot. How many lumens does an automobile headlight have? 5W0 are essentially the same at operating temperature. In theory, yes, you can switch from using 5W-20 to the 5W-30 because they have similar viscosity ratings. Can you use 10w40 instead of 5w30? 20w50 is actually thicker than 5w30. Applying thicker oil such as 10w40 on these parts will slow down the flow speed. Can I use 10W-40 instead of 5W40? Can I Use 10w40 Instead of 5w30? Will It Hurt the Engine? The 5w30 motor oil and the 10w40 motor oil have been interchanged a lot. It is advisable to use a 10w40 oil if the temperature of your city is below 30 degrees Fahrenheit. As lower temperature is not a matter of consideration for your lawnmowers oil requirement. The first number, 5 or 10 indicated on these oils stands for the viscosity, or how easily the oil pours at low temperatures. Harley Davidson is a brand that people trust, Read More Do You Know Who Makes Harley Davidson Oil? When you use the wrong oil for your engine, youd likely notice a significant drop in performance, and over time, your engine or its components may start to break down. But, using them from the very first time you bought your lawnmower till the end is not recommended. A "30" high temperature viscosity grade is common (as in 5W-30, 10W-30, etc) and is suited to many engines. For example, 10w30 synthetic motor oil might work better than conventional 10W-40 oil to protect your engine pistons and bearing. The recommended oil for all Toyota engines is 5w30 motor oil. Likewise, 10w30 oil will take hours to combust in winters. Most 5W-40 oils, are synthetic oils and are recommended for use in newer engines, as such engines are demanding not only the viscosity of oils but also their composition. 1 What happens if I put 10W40 instead of 5w30? We use cookies. 2. If you found yourself contemplating between 5w30 vs 10w40 motor oils, heres a detailed comparison of these two motor oils of different weights and viscosity. Having all the above information, the choice is up to you. Both motor oils are designed to work in different conditions, so they function differently. 10w40 oil | Subaru Forester Owners Forum But you cant apply two different motor oils for the cars simultaneously. It can cause harm to the engine in the long run if the oil is not pure and eligible for such an engine. Does Engine Oil Brand Matter? So, it will face less friction with the engine parts and get a boost in fuel efficiency. So, it is best for vehicles running in cold climates to use the 5W30 since it is thinner than the 10w30. what is the Difference between 5w30 and 10w40? I use 10w30 in winter and straight 30w in summer. What Is the Difference Between 5w30 and 10w40 Oil? Is 10W40 the same as SAE 30? If we separate the two parts of the grade 10W40, we will notice the first difference. Does it affect performance? Thus, it will increase friction and wear. [] On the other hand, the second portion of the grade number describes the thickness of the oil. What Does TBC Fault Mean On A Ford Truck? The 5w30 has a viscosity of 30 at high temperature while a 10w40 has a 40 viscosity at high temperatures. It simply implies that choosing motor oil other than manufacturers recommended cars increases its chance of damaging parts. This will also lower the performance of the vehicle and lower the effectiveness of the oil. Save my name, email, and website in this browser for the next time I comment. Consequently, 5W-30 oil lubricates and protects the car engine better at a low temperature especially during engine start-up in cold, winter weather. However, the main difference is only between their viscosity. So, your car may not reach the desired car speed. You can reduce the chances of a ceased engine by 32%, only if you chose the correct engine oil and change it after regular intervals. If we talk about the viscosity of the oil, 10W-40 is a bit thicker than 5W-30. But 10w40 oils have an added advantage; they typically offer more protection than lighter oils. Accidentally Used 5w30 Instead of 10w40: Is It Ok? Oils with the same high-temperature index SAE may have slightly different viscosity within the limits set by the standard. If you do ever find yourself driving in a much hotter climate and know youre going to be there long term then it might be an idea to switch to an oil with higher viscosity. We have seen many car owners interchanging between 5w30 motor oil and 10w40 motor oil. This oil also prevents oil from getting frozen and lumped up by sitting. 10W30 oil and 10W40 perform the same at cold temperature startups. For example, 5w30 is not always recommended at low temperatures and not for all car models. So Can I use 10w40 instead of 5w30? if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'yourgreatcar_com-leader-1','ezslot_3',176,'0','0'])};__ez_fad_position('div-gpt-ad-yourgreatcar_com-leader-1-0');The process of starting in an internal combustion engine is such that the current produced in the ignition coil is passed on to the spark plugs, which gives an initial push to the pistons. My friends and I created this site to tell you a lot of useful things from the world of cars. On the contrary, at a higher temperature, 5w30 has a viscosity rating of 30, which is also fewer than 10w40. One most common type of difference between the two of them is their viscosity. Cars With 3rd Row Seating And Good Gas Mileage, ACDelco Gold 48AGM 36 Month Warranty AGM BCI Group 48 Battery, Black, Optima Batteries 8020-164 35 RedTop Starting Battery.