#2. 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. It is advised that 5w20, 5w30, or even 10w30 motor oil be used in some Chevrolet engines in summer. So if you want to mix 20w50 oil with a 10w30 oil or if you have to, you can mix them both up. The lower viscosity makes 5w30 a better choice in cold weather. Germantown TN 38138. Can I use 5w30. 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. . Can I mix 5w 30 with gas? It should be fine. The 5w30 motor oil has a viscosity that is much higher than the 0w30 motor oil. Mobil 1 5w-30 is 'thinner' because of the '30. Still best to use the oil type weight recommended by the OM. I would recommend using a 5w30 oil. There are, as we’ll see later, pros and cons to doing so and mixing engine oil weights. 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. Again, the SAE30 is better for warmer temperatures while the 10W30 is suitable for varying temperature ranges and also works well in cold weather. It also calls for HTO additive. Essentially, either 5W30 or 10W30 will work in/above freezing temperatures, but we’d recommend 5W30 if you. So hot weather or cold weather will affect the usage of 0w20 more than the 5w30 motor oil. The choice between 10W30 and 5W30 engine oils may depend on factors such as the climate in your area, the age of your engine, manufacturer. Will you like something which won’t be helpful for you at all? Well, that’s what mixing 5w30 with 10w30 seems like. Most cars that recommend 0W-20 or 5W-20 do so for fuel economy reasons and can use 5W-30 with no ill effects. Available in 5w30, 10w30 & more. Even the oil mix of the synthetic and conventional blend will show you no harm to your engine. However, consult your car’s owner’s manual or a qualified mechanic. 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. Again, when buying motor oils, you should be careful of the brand. Heavey Equipment Mechanic. Additionally, you can combine 10w30 oil and 5w20 oil, but it is also not recommended. 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. 5w30 oil is lighter, and its density is less. 0l/ 4. Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. To conclude, you can mix 5W20 & 5W30 provided that they’re from the same brand and API. SAE 30 is significantly thicker and more viscous than 10W30, which means that it flows quite a bit more slowly in low temperatures. Just be aware that your engine may not get the full benefit of the thicker oil during warm weather operation. C. So to get 10W-40 Mobil 1 put in 2 quarts of 5W-30 and top off with 15W-50 (blend HTHS about 4. My current syn/dino mix: -2qts Valvoline Synpower 5w30 -2qts Mobil Clean 5000 5w30 -12oz Lubegard Bio/Tech . 10w30 is rated for -15F easily. The days of lubricants of the same application, type, and class fighting with each other are within reason, history. So whatever percentage of SAE 30 added is going to jack up the average above even what the 10W. The choice between 5W-30 and 10W-30 depends on the specific needs of your engine and the driving conditions you encounter. I'd buy all the 10W-30 I could, after getting the 5W-20. So, due to viscosity, 5w20 is a thinner oil during operating temperatures, whereas 5w30 is thicker during. #15. ; Mixing 10w30. Apr 30, 2004. Since the thinner 5w20 oil lower combustion range of -30° to 35° Celsius. And instead of just pouring the different oils into the engine for the engine to mix, it is a lot more fun to play Dr. At CarParts4Less, you’ll find a wide. 10w30, on the other. To get 10W you need at least 2. You can also use the 0w30 motor oil that can also be used in winter conditions. The 5W-20 will remain a little thinner at operating temperature, as indicated by its lower “20” number, while 5W-30 will provide a slightly thicker lubricating film. The main difference between SAE 30 and 10W30 motor oil is the viscosity. W. Can You Mix 5W30 and 10W30 Oil? No – you shouldn’t mix engine oils with different specifications like this. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. use 10w30 for 4. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. The higher the number, the less the oil will thin out in hot weather and vice versa. According to Mobil's website, it is OK to mix 2 different viscosity's of Mobil one as they are completely compatible. 5 and and 2. Although 5w30 is less dense, their viscosity is similar, and their combination is perfect. Yes, you can mix 20w50 oil with 10w30 oil. Gather your materials: You will need two containers of motor oil, one 5W30 and one 5W40. The other number is the weight of the oil and can’t be mixed. 10w30. If you drive hard, change the oil & filter more often. ROCHESTER, NY. For instance, if you have the SAE 30 engine oil, you can mix it with SAE 40. Theoretically it is not advisable to blend oils. For example, you can use 5W30, and 10W30 as SAE 30 motor oil alternatives. The protection offered by 10w30. 226 posts · Joined 2007. The main reason for this is that the two oils have different viscosities, or thicknesses. Apr 2, 2010. BC, Canada. The act is not recommended, but it is not prohibited also. It’s always essential to consult your vehicle’s manual or a mechanic before making any. Well, mixing won't hurt a thing. Motor oil of 0W20 grade is supposed to be kind of like 5W20, but with better cold start performance in winter in colder climates. Regular 10w30 oil can be used and mixed with the gas, or 2 stroke oil. It calls for 5W-30 motor oil. If you add 5W20 to 5W30, the result is an intermediate viscosity, which may not flow easily as the original oil. Many have reported that they have not experienced any harm or harmful effects that the mixture did. In the long run, a mixture of 5W20 and 5W30 engine oil can restrict oil movement, make the engine hotter, increase moving parts friction and reduce overall fuel economy. Running 10W30 in addition to 5W30 will not harm your engine. 10w30 – has a rating of around 5. Can you mix 5W-30 with 10W-30? In general, it is not recommended to mix 5W-30 and 10W-30 motor oils. 3. #9. 17. That's the point of viscosity. 6 and 9. So, it is best for vehicles running in cold climates to use the 5W30 since it is thinner than the 10w30. Yes, you can mix 10w30 and 5w30 engine oil. 5W-30 VS 10W-30. As per API recommendations (1) for car engines, you can use 10W – 30 oil if the maximum. Sep 9, 2017. If you’re unfamiliar with these terms, multi. Signature Series and OE Synthetic Motor Oil share a similar base chemistry, and formulations of the same viscosity can be safely mixed. The two oils have different viscosities, meaning they flow at different rates. 5 of 5-30 if it was newer. 10w30 and 5w30 have different viscosity ratings. In the natural gas drop depicted in the header image, the base oil is crystal clear. So for the question, the answer is yes. If your oil must be topped up, then you are burning oil already, so the difference won't cause more damage than is already there. Compatibility of 5w30 and 10w30. A mixture of two motor oils that have different viscosity and also have different weights is done by most drivers. I definitely agree with the other posts that there is no way that you can tell between 10w40 and 5w30. 5w-30 oil is thinner than 10w-30 oil, so. PlasmaBomb Lifer. 10w30 – NOACK volatility rating that clocks in at 7%. Odd, I'm running a 0w30 GC / 5w20 gtx HM mix myself in one of my mowers that calls for 10w30. So you can use 5w30 motor oil for your engine because it is recommended and suitable. There is no danger mixing synthetic and conventional motor oil. 0. As mentioned, a lot of car drivers are already doing the mixing of both these oils. Can 10w30 engine oil safely be used in place of 5w30 for a 2003. . Is It Acceptable to Mix 5w30 and 10w30 Oil Together? If you’re thinking of combining 10w30 and 5w30, the answer is a resounding “yes”! While it might seem unwise at first glance, rest assured that these two oils have similar viscosity grades when temperature levels are considered. However, 10w30 is a multigrade oil that performs well in hot and cold temperatures. So, it’s not suitable if you mixed 10w30 oil with 5w30. Only use this chart to find an oil equivalent to the manufacturer’s recommended oil for your tractor or truck. Before making a decision, it is important to know the technical specifications of every oil type. Mobil 1 Advanced Fuel Economy 0W-30 provides the high temperature protection of 5W-30 and 10W-30 oils while offering improved fuel economy. 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. St. 5%. In fact, it is said Mobil 1 5w30 is on the thin side of the viscosity range so mixing with 1/2 10w30 can make it closer to LL01 specs. You WILL NOT get a 5W by mixing a 10W and a 0W. You will not see a immediate failure if you mix the oils, but it will cause premature wear. 6,881. Feb 2, 2006. The engine oil will flow slower than 5w30 when it is cold. You can run 5W-30 year round. Plus, both of them have the same viscosity at temperatures. ”. I wouldn’t be worried about the 0W in the spec for cold weather starts but was wondering if a 40W oil is too thick for driving down the road with the engine warmed up. 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. Both oils have different. However, it isn’t advisable to mix them. Temperature Range. Please refer to your individual vehicle owner's manual for proper viscosity grade and specification of oil to use. The discrepancy occurs when there is a sharp difference in the viscosities of two fluids that retards the thorough mixing. How to Mix 10w30 and 5w30. My manual says to use 10w-30 but the local store always has 5w-30 heavily discounted and I have been using it. It should be avoided at all costs. If you want to strike a balance between the affordability of conventional oil and the benefits of synthetic oil, opt for a. W means winter. For example, you can mix 5W-30 oil with 10W-30 oil without problems. Take a close look at the viscosity numbers on the product data sheets. The 0w30 motor oil is known for its high capacity for improvement in terms of fuel economy. I used M1 5W30 in my mower with the Honda 160GCV consumer grade engine from purchase in 2000 until last year, when I ran out of my old formula M1 SL. 5w30 – 5w-30 counterpart registers 9. 5w30 is preferred especially in colder climates. 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. It is safe to mix 5w20 and 5w30 as long as you follow some recommendations. On my daughter's oil consuming tercel, I add 1 qt of 20-50 Castrol HM to see if thicker. Considering the most critical concerns while mixing the two oils, 5w-30 and 10w-30 are safe and compatible to mix together. Before using the 10w30 you just bought in place of your old 5w30, make sure the old 5w30 is completely removed. are what kill them. Yes, you can use 10w30 instead of 5w30. 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. Can You Mix 10w30 With Gas? Oil and gas from 10W-30 can be used in a 2-stroke engine. for 4. Viscosity is the level of a liquid’s resistance to flow. Therefore, you can mix 5W30 with 10W30 with no ill effects whatsoever. Lawn mower oil type recommendations. Probably any name brand 5w30, 0w30 or 10w30 will work great. Different oil producers have different standards, and it is noticeable in the oil quality. Mixing different oil weights can cause your car to run less efficiently. On the other hand, the 5w30 is a motor oil with a higher viscosity than the 0w30. Your mix is a little thin, but both are high quality oils. I would just use the 10w30. And when the weather is cold, 10w30 will circulate and help your engine get started a lot quicker. Run your straight 30 during the summer if you want to. In winter weather the 0W oil will flow like a 0W oil, and the 5W will flow like. With Shell Rotella T5 10W-30 synthetic blend, you get the strong wear protection of a 15W-40 with the added benefit of fuel savings. Make sure you use the same brand for both oils so that they blend properly. If you can't find it, you can use 5w20, but then that must be replaced with 0w20 at the next oil change. Therefore, there is no problem. The add packs are pretty much identical, the base oil and VI content would be the biggest difference. Both 10W-30 and 5W30 have the same viscosity at 100°C (212°F), it is the operating temperature of an average engine. DS 30-weights are very thin (9. They will blend perfectly. But the rule of thumb is to refer to your owner’s manual. I blend 10W30 and 15W40 together all the time and not just with the Duramax (2 of them) so it must be ok. Mixing one quart out of six doesn't seem like enough to degrade cold flow to take a 0W to a 5W. 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. But as both are synthetic oils and work almost similarly so, you can mix them well for your. Mixing will not change the behavior of the waxes in the 10WXX oil. If you plan to operate your generator during extremely cold temperatures or the thick of winter. 7 was due to excessive shear with 5w30s when the engine was introduced. On the other hand, the 10w30, due to low viscosity, is entirely compatible with the gasoline engine. There is no way to know exactly what the final viscosity is though, short of testing. The recommended motor oil for Nissan vehicles is 5w30 and 10w30.