Furthermore, when using oil additives, make sure the additive is made. I asked one of their engineers if this would make a 15w40, and he said I would definitely get a 40-weight at operating temperature, but he said the. There are, as we’ll see later, pros and cons to doing so and mixing engine oil weights. Low-horsepower engines often utilize 10w40 motor oil, which is designed to flow smoothly at low temperatures. BC, Canada. It is okay to mix, though. In fact, that is how manufacturers get their mix of various viscosities as well starting from a base stock. As briefly answered in the intro paragraphs above, the simple answer is YES. Mahzurrah! Apr 16, 2023. either 50:50 or even 3:1 for a 5w27. For example, can you mix 5w30 and 10w30 oil? Is mixing oil weights bad? In general, mixing oil weights is not recommended. Since oil 10W-30 has a higher number before ‘W,’ it won’t flow as quickly as 5W-30 at a lower temperature. With so many different types of engine oils on the market, you might be wondering if it’s possible to mix two different viscosities, such as 10w30 and 5w30. The first number (5 or 10) refers to the oil’s viscosity at low temperatures – meaning how thick or. They’ll mix seamlessly. Still, the safest way to do this is. No, you should not use 5w30 instead of SAE 30 in your lawn mower. You can’t mix the two because they aren’t of the same grade. 0 or 6. High-quality synthetic 5W-30 oil is recommended. Odd, I'm running a 0w30 GC / 5w20 gtx HM mix myself in one of my mowers that calls for 10w30. 3. The comparison table between 5w30 and 10w40 is given in the below table: 5W30. However, you should know that 10W30 has more density than 5W30. So while mixing different oils together is technically fine, it’s not always the best idea from a performance standpoint. Using 5w40 oil is beneficial to diesel engines. #7. For example, you can use 5W30, and 10W30 as SAE 30 motor oil alternatives. for 4. #13. That’s just a general overview of the difference between 10w30 and 5w30. Dec 24, 2014. In winter weather the 0W oil will flow like a 0W oil, and the 5W will flow like. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. Example 5w20 may have a cSt of 8. 5, so equal parts give a cSt half way in between (8. From Shell. Hi All. In fact, according to many drivers and mechanics on different forums (including Bob is The Oil Guy), 5w30 is actually a better multi-grade oil to use on engines with “5w” specifications. It is best to use the same manufacturer and stay consistent with it. Most cars that recommend 0W-20 or 5W-20 do so for fuel economy reasons and can use 5W-30 with no ill effects. Oil should be changed after the first 20-30 hours of operation and every 100 hours of run time thereafter. The engine is the 1999 5. Location. If your motor oil will be in the engine during winter, use 5w30 motor oil. g. Additionally, the two oils have different. Have an oil change coming up. Of course you can. But in all these, there’s nothing wrong with using two different oil weights for one engine. One alternative is to blend the 10W-30 oil with a 0W-30 oil to create a 5W-30 oil. Kohler, John Deere, Yamaha, Suzuki, Rotella, Delo, Delvac, Mercury Marine, Quicksilver marine, all suitable, all good oils, all come in 10W30. However, to clarify, the 10w30 has a higher density than the 5w30. At no cost can you mix 5w30 and 10w30. “5w20” means the oil weight in cold temperatures is “5,” and in high temperatures, the weight is “20. g. In addition, multi-grade oils become thinner in cold weather to adequately protect the. 0w30 vs. The answer is that ANY one can be used regardless of the vehicle owners manual recommendation. In the summer time you can use an oil 5W40. But if you use 10w30 oil as the proper lubricant, you can cut down on the amount of contact between the block and the cylinder. However, the former has a faster rate of thinning compared to the latter when temperatures increase. I know Briggs has totally revamped their recommendations to use 5w30 synthetic, 10w30 but doesn't specify which conventional or synthetic, they also list their 15w50 for the hottest temperatures. by. Check Vehicle Fit. On my last change, I mixed a 5W-20 with an HDEO 5W-40 and then topped up a bit with some 5W-30. We recommend you take a look at your. Avoid spilling during mixing the oil as it can make a burning scent. 226 posts · Joined 2007. This article clearly details the difference between these two oil viscosity ratings. Brands like Castrol, Pennzoil, and Generac make excellent synthetic SAE (5w30 and 10w30) oil. If this is indeed the case (you end up with a mix of baseballs and basketballs) I do not see the benefit of mixing i. The answer is yes. YES, as stated in the initial paragraphs above, is the straightforward answer. 1. The upside of synthetics is they handle heat much better. Above 32°F (0°C), use SAE 30. BEST BANG FOR THE BUCK: Valvoline Advanced Full Synthetic SAE 5W-30. However, all the snowblowers are different and vary from brand to brand. Mobil 1 for example, the plane ole M1 synthetic 10w-30 is thinner than the 5w-30 at full operating temperature. Can you mix 5w30 and 10w30? No, you can’t get any desired result by mixing both oils because both oils come in different grades. It can be used in place of SAE 30 in compatible engines as it provides the same SAE. So is it okay to mix the heavier 10w30 oil with 5w30 oil? Yes, you can mix these two oils if you are topping up. In a 5w30 engine, you can add 10w40 oil without seeing any major negative impact. So (30+30+25)/3 = 28. In addition, the different viscosities can cause the oil to sludge, clogging up your. The protection offered by. 10w30 is optimal in a hot engine up to 212℉. Apr 20, 2004. Dec 27, 2003. So (30+30+25)/3 = 28. It slightly reduces fuel efficiency. But you know which oil type will work better. Well, mixing won't hurt a thing. The answer is yes; you can mix 10w30 and 10w40 oil. Mixing 10W30 and 10W40 Motor Oils. straight 30 mineral oil. For example, if you mix 5w30 and 10w30 together, the resulting oil will have an average viscosity somewhere between the two (most likely closer to 5w30). This enables the 5w20 motor oil to reach engine parts quicker and create less drag that reduces fuel economy. What I want is a larger baseball or a somewhat higher 30w viscosity for high temp. Can be used in place of CD, CE, CF-4, CG-4, and CH-4 oils. The viscosity of these two oils is very close; hence, they might mix perfectly inside the engine; so to say, it is okay to mix 5W30 with 10W30. Viscosity Index: 141. Daily Drives: -2003 Toyota Tacoma PreRunner XtraCab, 2. The 0w40 motor oil and 10w30 motor oil is not on the recommended list. They are backwards compatible. For example, let’s dissect what “5W30” means. In simple words, you should be using 10W30 when it is hot outside and when it is cold, your go-to option for the better oil should be 5W30. If you need to top up your oil in an emergency, it’s best to stick to oil from the same brand to reduce any potential engine damage. The same brands would mean that they are compatible in terms of their additives. But as both are synthetic oils and. Common grades include 0w20, 5w30, 10w30, and 15w40. Large weight carrying engines use mostly 10w30. Is 20W-50 thick oil? The “20W” indicates how quickly the engine will start when cold or in cold weather. Both oils have almost the same viscosity and the same operating range. The motor oil’s cold viscosity is essential because it will dictate the lubrication. You WILL NOT get a 5W by mixing a 10W and a 0W. The 5w30 has more viscosity index improvers vs the 10w30 so technically the 10w30 would have more oil that lubricates the engine. 10W-30: works well at all temperatures, and helps to make cold starts easier. When looking for SAE 30 oil replacements, you should ensure that the equivalent has the same flow rate as SAE 30 at a normal operating temperature. If this is indeed the case (you end up with a mix of baseballs and basketballs) I do not see the benefit of mixing i. Viscosity. Unfortunately, there is no mention of the 0w30 motor oil and 0w40 motor oil. Mixed engine oil is better than low, dirty, or no oil. ca: "If you mix viscosity grades such as a 5W30 low-viscosity oil and a 10W40 higher-viscosity oil, it is reasonable to expect that the resulting product will have viscosity characteristics which are thicker than the 5W30, but thinner than the 10W40. But no it won't hurt to use 5w30. Yes, you can mix 20w50 oil with 10w30 oil. You may notice that ISO 46 can replace both 15W and 20W SAE oils. It is not advised for car drivers to do so. For example, a 10w40 motor oil will be a lot thicker at startup than the 5w30 motor oil. If you wish to use 10w30 instead of 5w30, then you need to remove the old 5w30 entirely before pouring the 10w30 you just bought. Cummins stipulates 20086 for you ride because of DPF and SCR issues. And when the weather is cold, 10w30 will circulate and help your engine get started a lot quicker. The ”W” in the two oils stands for winter. Consumption hasn't changed and neither has my mileage, as far as my hand calculations can tell. You should be alright. There’s one thing that you should avoid. If you're mixing the leftovers from 5qt jugs to use in your lawnmower, yes. #13. Start the engine and run it for a few minutes to mix the oils perfectly while ensuring optimal performance. Starting the engine with warmed up oil is THE way to do it, and makes mixing totally not needed. Mahzurrah! Mar 5, 2021. W represents winter and not weight. When we mix 5w-30 and 10w-30, there is no immediate damage, but prolonged use can cause damage to your engine and also reduce the oil changing gaps. I would recommend using a 5w30 oil. Thanks to their close viscosity, mixing the two oils will have no damaging effect on the engine. Below 40°F (4. A 5w30 motor oil can get thicker than a 0w30 motor oil because the 0w30 motor oil is thinner. In the 10w40 we have 30. A Euro oil like M1 0w-40 will typically have more than sufficient ZDDP for most mild to moderate FT builds. How To Mix 10w30 and 5w30. So we wind up with 8. Both oils are good for modern engines, and you can get them in. So is it okay to mix the heavier 10w30 oil with 5w30 oil? Yes, you can mix these two oils if you are topping up. at operating temperatures. Every 40 weight I put in was in the 30 weight range. Can you mix 5W30 and 10W30 motor oil? 5w30 and 10w30 are two of the most common motor oils. 30 weight goes from. However, always prioritize engine health and match the oil to your driving conditions. If you desperately need to top off a quart, yes. You just need to know that you may have less time between oil changes as a result of mixing oils. If you add 5W20 to 5W30, the result is an intermediate viscosity, which may not flow easily as the original oil. In this article, you’re going to learn whether or not you can mix synthetic oil with regular oil, as well as all the reasons why people consider mixing these two types together. #16 · Nov 1, 2010. A mixture of two motor oils that have different viscosity and also have different weights is done by most drivers. On my daughter's oil consuming tercel, I add 1 qt of 20-50 Castrol HM to see if thicker. 4,373. Inside your engine, both oil formulations can withstand temperatures of up to 100°C/212°F. When comparing 5w20 vs. When it comes to 5W-20 or 5W-30 vs 10W-30, the opposite is true: the 5W oils will flow a little better in the cold than a 10W oil for maximum cold-weather protection and easier cold starts. There is no mention of the 15w40 motor oil for these engines, so it might be better to avoid it. I wouldn't want *any* 50w basketballs in there. 0w20 vs. O. You can either add the lightweight 5w30 first and then top off with the heavyweight 10w30, or add the entire oil at once and then let it run for a few minutes before checking the level with a dipstick. One year, I had some 0W30, and I used that. O. You should not mix 10w30 and 5w30 at any cost! While you can use 10w30 oil in most cases, it is always best to ensure that 10w30 is the correct weight for your car. 6. By industry agreement/specification, all brands of oils will work fine together. The answer is yes; you can mix 20w50 oil with a 5w30 oil. Germantown TN 38138. Not only does this in-depth 10w30 vs 5w30 guide.