Jan 30, 2015. either 50:50 or even 3:1 for a 5w27. #2. But it’s not necessarily ideal. Start the engine and run it for a few minutes to mix the oils perfectly while ensuring optimal performance. 0 or lower HTHS of a 5-30 under the hot conditions an air cooled engine experiences. The 5w40 motor oil is recommended in performance engines. 5w30 oil is thinner than 10w30 oil because of its lower viscosity. Mixing the viscosity of oil has no effect on the engine. It is much better if the two oils are. When buying motor oils, it is good to consider options from top brands because they are typically made with OEM-approved, premium additives. 5w-30 and 10w-30 are no different once operating temperature has been reached. Yes, you can use 10w30 instead of 5w30 in most cases. You can mix 5W30 and 5W20. As such, mixing synthetic and conventional oil is okay sometimes if you don’t do it frequently, but otherwise, frequently mixing together can affect their performance. The add packs are pretty much identical, the base oil and VI content would be the biggest difference. Mixing the two oils together can cause the oil to break down and lose its ability to lubricate and protect your engine. From Shell. Mixing 10W30 and 10W40 Motor Oils. As a result, its film strength is weaker. #2. It is entirely safe and okay to mix 5W30 and 5W20. Most new cars today run 5W30 and most oil change shops use 10W30 for everything. I live in a warm climate and, in theory, 10W30 would be a better choice because of lower volatility (NOACK). But it’d be best to mix oils from the same brand – the additives won’t be. In your scenario, as long as you stay >10°F above freezing it wouldn't matter between 5w30 and 10w30 since they're both 30 weight and the first number doesn't come into play until cold temperatures. It’s hard to tell the difference between 5w30 and 10w30 in terms of. The concern often centers around potential engine damage, but when it comes to oils of similar viscosities, there is no need. 5w30 – 5w-30 counterpart registers 9. To get 10W you need at least 2. Yes, you can mix 5w30 and 10w30 oils. 10w40 oil is a thicker oil than 5w30. Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. So to get 10W-40 Mobil 1 put in 2 quarts of 5W-30 and top off with 15W-50 (blend HTHS about 4. Furthermore, when using oil additives, make sure the additive is made. So whatever percentage of SAE 30 added is going to jack up the average above even what the 10W. Which Oil Is Thicker: 5W-30 or 10w30? Both oils have a similar viscosity at 100 degrees Celsius but the 5w30 grade oil will thicken less than 10w30 grade oil in a cold climate. The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. 4°C) and down to -10°F (-23°C), use 10W-30. If you use 10w30 regularly in. Since the viscosity at higher temperatures is 30 for both, it is best to swap 5w30 for 10w30 during the warmer months. 5w30 is a thinner oil than 10w40. I didn't notice until it was two late (Autozone didn't have the oils stocked correctly), but I just mixed two 5w20s with three 10w30s. However, your car may not function the same in colder temperatures. Will you like something which won’t be helpful for you at all? Well, that’s what mixing 5w30 with 10w30 seems like. 5w30 oil is lower in viscosity and there is a small chance of the car not running. Tractionless1 said: I use 5w-20, that's what he manual recommends. There are no significant damages or problems that you will have to deal with. Additionally, all of them are identically viscous at all degrees. Germantown TN 38138. The first number (5 or 10) refers to the oil’s viscosity at low temperatures – meaning how thick or. Drivers can get used to one car oil manufacturer because of certain properties. Again, the SAE30 is better for warmer temperatures while the 10W30 is suitable for varying temperature ranges and also works well in cold weather. Ford said that at -20F (-28C), conventional 5W-30 took 30 seconds to pump up to the valve train, while conventional 10W-30 needed 2 minutes. However,. SAE 30 is a single-grade motor oil that provides adequate lubrication to engine parts when operating under hot viscosity conditions. Trucks, SUVs, and other types of vehicles can be included. There is no danger mixing synthetic and conventional motor oil. See moreLearn 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. You can’t mix between regular/synthetic blend/full synthetic but mixing weights, especially if they’re by the same manufacturer, is no problem. the biggest difference you can do is plug in an oil pan heater on a timer for 3 hours before you anticipate leaving in the morning. If the temperature is above freezing, you can also use. This is a mixture of 8 oz. Mixing will not change the behavior of the waxes in the 10WXX oil. (Explained) Can I mix 5w30 with 10w30? Well, many drivers often think it is good to pour 5w30 oil with 10w30 oil. Aug 24, 2013. The protection offered by 10w30. If your winter temps rarely drop below 32F, modern SAE 30 is a viable year-round oil. Blends do not work that way. A lesser-weight oil may often be used with a higher one. J. 10w30 Nissan. You can mix 5W30 and 5W20. 5 quarts; I mixed 1 qt 10W40 with 3. The car currently has castrol edge 5w-30 and the only oil I can find locally is castrol edge 5w-40. It is not recommended for drivers of automobiles to do so. Shell Helix Ultra Fuchs Titan GT1 Motul X-Clean 8100 Triple QX Full Synthetic I. valvoline or pennzoil high mileage should do fine and maybe stop the oil seepage and oil burning or for sure slow it down. The 2008 to 2010 engines highly recommend staying with 5W30 but 10W30 isn't prohibited. Example 5w20 may have a cSt of 8. Both oils are good for modern engines, and you can get them in. 5w30 – 5w-30 counterpart registers 9. 5W30 motor oil is suitable for use in today’s gasoline-powered vehicles. If you want something thicker you should mix the 10w40 with the 5w30. 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. When you mix motor oils, you deprive your engine of enjoying the full benefits both oils would have delivered if used separately. Just remember: Always use the weight of oil that is recommended, and you will have a few issues. The two motor oils will stay the same oil. I do the same thing and add the oils to OPE or top off my engines if needed between OCI's. Plus, both of them have the same viscosity at temperatures. 7, to get that you need at least 1. Pennzoil Ultra Platinum. These specifications are to be used as guidelines only. This blog post will clarify the confusion and explain the difference between these two. Pennzoil High Mileage Conventional 10W-30 Motor Oil for Vehicles Over 75K Miles (1-Quart, Case of 6) Conventional High Mileage 10W-30 engine oil specially formulated for new or late model SUVs, light vans and trucks, and passenger cars. 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. For instance, some automakers recommend against mixing synthetic and conventional oils. 1. Apr 15, 2022. 5%. #1 · Jul 1, 2018. Temperature Range There are several critical aspects that readily depend on the functional temperature range. 10w30 just like 5w30 engine oil is capable of maintaining its viscosity even under high temperatures. Reads 70. The other number is the weight of the oil and can’t be mixed. The 10W30 motor oil numbers are the viscosity at cold and hot operating temperatures. Sort by Oldest first. But since the concentration of whatever waxes in the 10W-XX is diluted, it would seem like the viscosity would be lower due to the 0W-XX. There are no significant damages or problems that you will have to deal with. Good old 10w30 is as close to a universal oil as exists, it seems to do well in virtually anything. 5w30 and 10w30 oils are both multi-viscosity oils, which means they are designed to perform well in a wide range of temperatures. when you mix oils you add the wt. The hot viscosity, the 30 grade, will stay the same if you mix them. With what we’ve explained above, the simple answer is YES, you can mix 5w30 and 10w40 oil without bothering of any catastrophic engine damage. It means the number after W must be 30. However, this is only fine when you need to add more oil to the engine. Additionally, the two oils have different additives. #7. Can You Mix 5w-30 and 10w-30? – Safety Aspects. Technically, you can mix SAE 30 oil and 10W30 oil, but it’s generally not advised to do so. 5W-30 VS 10W-30. 5w30 oil is an excellent option if you drive your vehicle in an area that experiences significant temperature shifts throughout the year. If you want to mix, consider mixing straight grade oils. Yes, you can make use 10W30 engine oil instead of the SAE30 in your Lawn Mower. What oil Can you mix with 5W-30? These two motor oils are very similar in viscosity; hence, they might mix perfectly in your engine. However, using thicker oil than recommended will put more stress on the engine resulting in premature wear of engine parts and poor fuel economy. No Doom and Gloom will result. One of the most. Mobil 1 0W-30 Advanced Fuel Economy meets or exceeds many new car warranty requirements where SAE 0W-30, 5W-30 or 10W-30 oil is recommended. The fluid is commonly used in vehicles with gasoline engines. Yes, you can mix them. Yes, you can mix 5w30 and 10w30 oils. There are, as we’ll see later, pros and cons to doing so and mixing engine oil weights. 5W-20 flows more easily due to its lower viscosity; however, at 212°F, 5W-30 is slightly more viscous. of oil to 1 gal of gas. In warm climates, they will act very similarly. So you can use 5w30 motor oil for your engine because it is recommended and suitable. So, we can say you can mix 10W30 with 5W30 safely and perfectly. So if you want to mix 20w50 oil with a 10w30 oil or if you have to, you can mix them both up. When comparing 5w20 vs. However, oil consumption will be a bit higher. For example: Valvoline Maxlife Synthetic. Avoid spilling during mixing the oil as it can make a burning scent. I have blended Valvoline VR1 10w30 and 20w50 before, and it has worked OK, but I never tried a true. On the other hand, if you add 5w30 oil to a 10w40 engine, you’re taking a bigger risk. If you mix 2 quarts of 5W20 and 3 of 10W30, it will come pretty close to the viscosity of 5W30 which can ensure a good performance for your engine. For example, you can use 5W30, and 10W30 as SAE 30 motor oil alternatives. So, 5w30 and 10w30 oil can be mixed without causing any harm, so you can do so. If the 0w30 motor oil and 10w30 motor oil are heated up, these motor oils will have the same viscosity. regular oil and advising whether mixing motor oil is okay. So if you mixed 5W20 and 5W30 engine oil or accidentally used 5w30 instead. You can also use 10w30 motor oil in cold weather, but it is preferred in hot weather. In a mild climate and an engine spec'd for a 30 grade in the first place it's the best choice IMO. Yes, you can mix 0w20 oil with 5w20 oil. The primary difference between 10w30 VS 5w30 oil is their viscosity. It can be used in place of SAE 30 in compatible engines as it provides the same SAE. Low-horsepower engines often utilize 10w40 motor oil, which is designed to flow smoothly at low temperatures. You will not see a immediate failure if you mix the oils, but it will cause premature wear. The net effect of adding 1/2 or 1 gt of anything in your 4. s then devide. So hot weather or cold weather will affect the usage of 0w20 more than the 5w30 motor oil. You cannot mix 0W40 and 10W40 and get 5W40. R. 5W30 oils are easier to move in cold starts, on the other hand, 10W30 oils lubricate the engine. You may combine 10w 30 and 5w 30. If I was you though, I would just run the Valvoline VR1 5w-50 synthetic and not worry about trying to mix oils. However, this should only be a stop-gap until you get to your nearest oil change provider. Yes. whereas 10W30 oils are more suitable for cars that run throughout the year in higher temperatures. 10w30 oil type covers a significantly smaller range of temperature. Can you mix 5W-30 with 10W-30? In general, it is not recommended to mix 5W-30 and 10W-30 motor oils. You may have come across SAE 30 and 10W30 oils and wondered what the difference is between these two options. My oil mix is the same as your friends (5W20, 5W30, 10W30). Of course you can. This motor oil is used commonly in different types of vehicles. Pennzoil Platinum Dexos1 Gen2 5W30 satisfies all my requirements. If you desperately need to top off a quart, yes. 10w30 is rated for -15F easily. If your engine is dangerously low on oil and all you have to hand is the opposite then top the engine up. But generally, considering versatility, the 5w30 oil is superior to 10w30 oil. The concern often centers around potential engine damage, but when it comes to oils of similar viscosities, there is no need for worry. In addition, the different viscosities can cause the oil to sludge, clogging up your. This changes how well the two oils work together. Whether you’re topping your 5W30 engine with 5W20 oil. However, it’s essential to consider the. 2 quarts, but no more than 4. Rotella T5 10w-30 or regular Rotella 15w-40 in all the small engines up to 35 horsepower. roy1 Discussion starter. So we wind up with 8. I'd probably stick to Royal. In fact a lot of oils are synthetic blend, or “semi-synthetic” and it’s literally synth and mineral mixed together right in the sealed bottle. However, it is crucial to check your vehicle’s owner’s manual to ensure that 10w30 is the correct weight for your car. While it is possible to mix SAE 30 and 10w30 oils, doing so can impact the overall performance of your lawn mower. Keep in mind oils do not mix if you have 5w30 and add 10w30 it won't give you a blens both oils will stay seperate so you will have a few quarts 5w30 and a quart 10w30 they never mix. You may notice that ISO 46 can replace both 15W and 20W SAE oils. Mixing at a ratio of less than 1 qt of 0w20 to 3 qts of 0w30 likely won't make much difference at all. What About Mixing Different Brands Of Motor Oil? For example, assume that you are using Quaker State 5W-30 in your engine and for whatever reason, you need to add oil during a long trip and only Valvoline 5W-30 is available. A mixture of two motor oils that have. Most oils will mix perfectly, provided they have a similar synthetic. That means mixing single grade type of oils with their single grad counterparts. Therefore, they will flow in the same manner. When the engine is excellent, 10w30 motor oil has a viscosity of 10w. Sometimes thicker oil is even recommended in higher mileage engines, although I believe the jury is still out on it. But the resulting oil should still be at least a 5W. In the 10w40 we have 30. Can 5W-30 oil be used in high temperature? 5W-30 oil can operate in temperatures as high as 95°F, after which you should switch to a better high temperature oil viscosity grade. 5%. Yes, you can mix 10w30 and 5w30, but it's not recommended. Inside your engine, both oil formulations can withstand temperatures of up to 100°C/212°F. Nick778, Make things easy on yourself and run some Mobil 1, 0w-40, or perhaps the Redline or Amsoil 10w-40 synthetics. If it flows better, it's not a 10W-30. 10w30 oil is thicker and designed for use in higher temperatures and heavier engine loads. SP, SN (5W-20, SAE 5W-30, SAE 10W-30, SAE 10W-40, SAE 25W-60*) API: SL, SJ (SAE 25W-60*) ILSAC: GF-6 (SAE 5W-20, SAE 5W-30, SAE 10W-30) Specifications may vary by viscosity grade. The short answer is, yes, you can technically use 10W40 instead of 10W30. As the viscosity of these two oils is very close, they will mix properly.