It’s always essential to consult your vehicle’s manual or a mechanic before making any. It’s not necessarily ideal, but doing so won’t cause harm to your engine. However, there are a few things to keep in mind if you do. In fact, race teams that use Mobil 1 regularly mix 10W-30 with 15W-50 to achieve the desired blend for the particular temps and race duration. You may have come across SAE 30 and 10W30 oils and wondered what. Can You Mix 5W-30 and 10W-30 Oil? Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. On the other hand, it has a hot viscosity grade of 20. Now, let’s address the question of whether you can mix 5w30 and 10w30 oils. However, just because you can mix it, it does not mean that you have to. However, many car drivers have been doing this act, and they seem to be okay. 0. 5-30 or 10-30 it is all the same. 5W20 oils have a winter viscosity grade of 5, which means that it is less viscous at extremely low temperatures compared to 10W30. Viscosity Index: 141. 5W-30 oil typically contains more friction-reducing additives, which help to reduce engine wear and tear, while 10W-30 oil may contain more viscosity modifiers, which help to maintain a stable viscosity over a wider range of temperatures. 5, so equal parts give a cSt half way in between (8. I believe the 6. But generally, considering versatility, the 5w30 oil is superior to 10w30 oil. Although mixing the same grade engine oils such as sae30 and sae40 is acceptable mixing two different grade oils is not advisable. C. That’s just a general overview of the difference between 10w30 and 5w30. What is less (or not) predictable is the low temperature viscosity of 5W or 0W. 7 Liter , Mobil1 Synthetic SS 5W-30. The recommended motor oil for Nissan vehicles is 5w30 and 10w30. 5w-30 oil is thinner than 10w-30 oil, so. Unfortunately, there is no mention of the 0w30 motor oil and 0w40 motor oil. The 5w30 should be fine,but if you insist on using something a tad thicker use the 10w30. Synthetic 5W-30 can be used in all temperatures. Yes, you can mix 5W-30 and 10W-30 motor oils without causing significant issues for your engine. The net effect of adding 1/2 or 1 gt of anything in your 4. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. The concern often centers around potential engine damage, but when it comes to oils of similar viscosities, there is no need. Most "back in the day" oils did not have super high levels of ZDDP like people seem to believe, we've seen VOA's of those lubes that have proved that. This means that the viscosity will rebalance and will create a new one. For example, you can use 5W30, and 10W30 as SAE 30 motor oil alternatives. Other common types of motor oils used in lawn mowers include 10w30, synthetic blend and straight-grade SAE 30. However, 10w30 is a multigrade oil that performs well in hot and cold temperatures. Apr 2, 2010. Example 5w20 may have a cSt of 8. Apr 16, 2019. SAE 30 is significantly thicker and more viscous than 10W30, which means that it flows quite a bit more slowly in low temperatures. When mixing the two types of oil in different weights, the technique is to pour the light one into the engine first, so here goes the 5w30. 0 or 6. So in your case mixing Mobil 1 10w30 with Mobil 5w30 is fine since they are the same brand. So, due to viscosity, 5w20 is a thinner oil during operating temperatures, whereas 5w30 is thicker during. If you’re in a rush or dealing with an emergency, and you do need to combine two different engine oils rather than doing a. They will blend perfectly. You can use 5w20 and 5w30 in your snowblower. F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. #17. It can retain its standard viscosity at -16 to 30 degrees Celsius at the temperature ranges. It might create issues and damage the engine capacity as well. The 0w30 motor oil is good for cold weather, and the 10w30 motor oil is suitable for summer. For a multiple viscosity oil, the first number is the viscosity when it is cold and the second number is the viscosity when the engine has reached its operating temperature. If I was you though, I would just run the Valvoline VR1 5w-50 synthetic and not worry about trying to mix oils. Most synthetics today are. These oils share a close viscosity profile, making them compatible for blending. To mix and homogenize 5W30 and 10W30 properly, firstly pour 5W30 oil into the engine and then add 10W30. Before using the 10w30 you just bought in place of your old 5w30, make sure the old 5w30 is completely removed. roy1 Discussion starter. 1. #10. As a result, combining the two oils in your engine may be okay. It can be used in place of SAE 30 in compatible engines as it provides the same SAE. 5 + 10. Many cars and trucks use multi-grade oil, such as 5w30 and 10w30. 4L. 7cst), so they are almost a 20-weight. 10w30, on the other. 0w20 vs. You should now know that yes, you can use 10w30 instead of 5w30 for your car. If your vehicle is using multiple litres of. The two oils are compatible and will not separate. On the other hand, if you add 5w30 oil to a 10w40 engine, you’re taking a bigger risk. You can go with 5w30 motor oil if the weather is cold. Just because the motor is small doesn't mean a thin oil is better. Pro Tip: Consult your vehicle’s manual or seek professional advice before choosing the appropriate motor oil grade. I would definitely use SS 5w30 over sae 30 in a snowblower. – Protects your lawn equipment all year long. Different oil producers have different standards, and it is noticeable in the oil quality. Different oil producers have different standards, and it is noticeable in the oil quality. Mixing one quart out of six doesn't seem like enough to degrade cold flow to take a 0W to a 5W. That said, you can mix 10w30 and 5w-30, but it’s best to use one out of the two. The first number, 5, represents the oil’s thickness or viscosity in low temperatures. Yes, they can be mixed without problem. Have an oil change coming up. You may notice that ISO 46 can replace both 15W and 20W SAE oils. Which oil is better 5w30 or 10w30? 5w30 is less viscous than 10w30. The 5w30 motor oil has a low viscosity of five (5) and a high viscosity of thirty (30). This will give you the viscosity you need while also improving fuel economy. It is only in cold weather that the performance. On my daughter's oil consuming tercel, I add 1 qt of 20-50 Castrol HM to see if thicker. The short answer is yes, you can mix them. The 5w30 has more viscosity index improvers vs the 10w30 so technically the 10w30 would have more oil that lubricates the engine. However, since 5w30 and 10w40 have different viscosity and weight, it is advisable to mix them in equal quantities; that is to say, 50% of 5w30 to 50% of 10w40. In warmer regions, the thickness of 10W30 will make it easier to flow. Refer to your owner’s manual for the recommended motor oil for your vehicle. When buying motor oils, it is good to consider options from top brands because they are typically made with OEM-approved, premium additives. since there is no such viscosity) since those two oils. Yes, the oils may have different additives; hence, the difference in. There’s one thing that you should avoid. Can You Mix 10w30 And 5w30? Absolutely! Mixing 10W-30 and 5W-30 oils is perfectly fine and won’t cause any significant issues. As a result, many consumers can. Toyota's requirement is to insure you use a synthetic oil if you want the 10,000 mile maintenance intervals. 10w30 oil provides a better seal and better protection than 5w30 oil because of its higher viscosity. Technically, you can mix SAE 30 oil and 10W30 oil, but it’s generally not advised to do so. This combination is indeed safe. The most common engine oil ratings are 5W-30, 5W-40, 10W-30, and 10W-40. If you search online about mixing oils, you will get a lot of people telling you it is okay. The other number is the weight of the oil and can’t be mixed. Resources Can I Mix 5w30 and 10w30 Oil? So, mixing 5w30 and 10w30 oil will not cause any harm, so that you can mix the two of them. Check Vehicle Fit. Whether the motor oil is a 5w20, 5w30, 10w30 or 0w30 or even a synthetic vs. Daily Drives: -2003 Toyota Tacoma PreRunner XtraCab, 2. Temperature Range There are several critical aspects that readily depend on the functional temperature range. 5 puts it into the VERY thin 30 weight range. While there are no apparent damages to your engine by using the blended mixture of 5w30 and 10w30, you have some. #2. Both oils have lower viscosity at temperatures that measure the resistance of the oil to flow. of gas) to 50:1 (2-1/2-oz. 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. If your oil needs to be topped up, you are burning oil already so that the difference won’t cause any damage. If you use 10w30 regularly in your car, you won’t notice any difference in performance when switching to 5w30 for short trips. Nope. Although it is not advisable to mix the two, a 10w30 and 15w40 can be mixed and used. Viscosity. It is impossible to combine the two oils into a single oil. 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. As a car driver, you must know that motor oil is used as a lubricant. Can I mix in 5w-30 oil with 10w-30 oil? Mixing 10W30 and 10W40 Motor Oils. The answer is that ANY one can be used regardless of the vehicle owners manual recommendation. No, you should not use 5w30 instead of SAE 30 in your lawn mower. Based on your climate, just run a heavy duty engine oil in 10W30. Whether you’re topping your 5W30 engine with 5W20 oil or vice versa, you are definitely not triggering any harm or potential damage to the engine’s core components. On the other hand, you can use 0w40 motor oil for extreme weather because it is suitable for start-ups. This problem can cause a bearing to go bad due to spinning. Yes, you can mix 5w30 and 10w30 without a second thought. So (30+30+25)/3 = 28. Every day, trained Jiffy Lube technicians help thousands of motorists select the right motor oil, and that includes choosing synthetic vs. Above 32°F (0°C), use SAE 30. 10w30 is optimal in a hot engine up to 212℉. Both syn oils. You don't want to use 5w30 in a push mower, it'll just burn up, because it's so thin. Actually, a stack of 10w30 oils including a 5w30 HDEO on the approved CES 20086 list. Yes, you can mix 5w30 and 10w40. 5W-30 VS 10W-30. ”. Originally posted by Ken2: Mobil 1 0W-30, 5W-30, and 10W-30 are basically one formulation, and 0W-40 & 15W-50 are somewhat different formulations. #13. However, it is not recommended to do so. Jun 24, 2018. 3. If you're hoping to homebrew your own special blend of 2. that's why I am asking maybe it will help to go to the 10W/30 Synthetic am I right. Learn the pros and cons of mixing 5w30 and 10w30 engine oil, the difference between the two viscosities, and how to do it safely and effectively. This means that if you want to, then you can mix 0w20 oil to 0w30 oil. Portions of the 8oz. Nebraska. By the time you finish reading this guide, you’ll know under what circumstances it’s a good idea to attempt mixing regular oil. 70 US per quart. SAE 30: works well in warm temperatures, and is best for older two. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. Mobil 1 for example, the plane ole M1 synthetic 10w-30 is thinner than the 5w-30 at full operating temperature. Starting the engine with warmed up oil is THE way to do it, and makes mixing totally not needed. #13. Frankenstein by saving a 5 qt oil jug so you can mix them in the celler (or attic) on a dark and stormy night. This means that it is a multi-grade oil that can perform well in a range of temperatures. Preferably, you should only use the oil that. These two oils only have a difference of five points on the scale, so mixing can be done successfully. Synthetic oil is a blend of different oils, so it is not pure like conventional oil. If you want to mix, consider mixing straight grade oils. 4 100 degrees cSt, so you can call. Can you mix 5w30 and 10w30? Yes, why not! You can use a mixture of 5w30 and 10w30. Can 10w30 engine oil safely be used in place of 5w30 for a 2003 Pontiac Grand AM GT V-6? Yes, 10w30 can be safely used in that engine. You are not allowed to mix 5w30 with sae30 because both engine oil has different viscosity grading. Both oils have lower viscosity at temperatures that measure the resistance of the oil to flow. Can You Mix 10w30 and 5w30? It is technically feasible to combine 5W-30 and 10W-30 engine oil, but this may not be the ideal option. 5w30 is a multi-grade oil, on the other hand, sae30 is a monograde oil. All in all, be it 5w30 or 10w30, either is better for your vehicle. If you are not in a situation where low-temperature startup anti-wear protection is not critical to you, then using 10w30 oil can be fine as well. Apr 8, 2021. Can be used in place of CD, CE, CF-4, CG-4, and CH-4 oils. 10W-30: works well at all temperatures, and helps to make cold starts easier. They will blend perfectly. Here is the reply "Yes, the engine included with the package is a 2 stroke unit. Turf-Gard™ engine oil. Amsoil small engine 10w30 Even then SS 5w30 is much better. Mahzurrah! Apr 16, 2023. The two motor oils will stay the same oil. Avoid spilling during mixing the oil as it can make a burning scent.