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. By industry agreement/specification, all brands of oils will work fine together. So, 0w20 is a thinner oil than, say, 10w30. 5W30 is a multi-grade oil with a viscosity ranging from 5 (lower) to 30 (higher). There are no significant damages or problems that you will have to deal with. Yes, you can mix 5W-30 and 10W-30 motor oils without causing significant issues for your engine. 10w30 just like 5w30 engine oil is capable of maintaining its viscosity even under high temperatures. Yes, 5w30 is suitable for lawn mowers. Here, 10w30 and 5w30 both are excellent engine oils. Feb 7, 2014 / Mixing 10w30 with 15w40 Kubota oil #8. So again, adding or mixing two oils is not advisable. However, it’s not the best idea. The reason for not wanting to use 5w50 is the reports of 5w50 oils eating rod bearings in these engines. Explanation of Motor Oil Grades of 5W20 and 10W30. Apr 2, 2010. As for oil viscosities, mixing 10W30 and. Common grades include 0w20, 5w30, 10w30, and 15w40. Briggs and Stratton approved 10w30 and 5w30 synthetics for lawnmowers, snowblowers, etc. Now, let’s address the question of whether you can mix 5w30 and 10w30 oils. 5 of 5-30 if it was newer. Suggest: put your 10w-30 oil on Craigslist for cheap,. Also, since turbos run at such high speeds and temps, the right type of oil is critical. 10W30 and 10W40 Defined. Main difference in a diesel engine oil is it has more detergent or other agent to keep the soot suspended. High viscosity oil is best. Whereas 10w30 is a high-grade oil and has a higher density. When I start to accumulate too much oil, I have actually performed a full OCI with 5 qts of this mix. This is because both oils have the same API classification (in this case, SN). Engine oil has a higher sheer rating than hydraulic oil. P. However, if you use these motor oil, the new viscosity will be higher than the 5w30 and thinner than the 10w40. and Castrol GTX 10W-30 dino went out and bought two quarts Valvoline Max Life syn-blend 5W-30. Compatibility of 5w30 and 10w30. Starts right up. But it’s not necessarily ideal. So, if you’re looking to save a few bucks, using 5W-30 oil in your lawn mower is perfectly acceptable. On the other hand, 10W30 oils have viscosity grades of 10W at lower temperatures and 30 at higher temperatures. 4L 454 with 160k. The blending of both oils won’t do the engine any harm, at least not immediately. Jan 30, 2015. Mixing the viscosity of oils will not have any effect on the engine. However, it is advised against because of multiple reasons. You also can run a mix of 10w30 with one or two quarts 10w40 for an in-between grade. German Castrol, aka Castrol Syntec 0W30 is almost a 40 weight at operating temps. 9 When used 10w-30 tests below 9. Each oil weight gets designed for specific weather conditions and driving styles. Johnny. The choice between 5W-30 and 10W-30 depends on the specific needs of your engine and the driving conditions you encounter. The act is not recommended, but it is not prohibited also. The short answer is yes, you can mix 10w30 and 5w30 under certain circumstances. They have similar ingredients other than the viscosity level. 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. Mixing the viscosity of oils will not have any effect on the engine. Yes, if you get the know-how. Of course you can. It’s not necessarily ideal, but. I am responsible for oil changes in a variety of family vehicles and vehicles of friends and use Phillips Choice syn-blend oil 5w20, 5w30, and 10w30 which I have always heard is the same as the revered Motorcraft brand of syn-blend. Your mix is a little thin, but both are high quality oils. straight 30 mineral oil. Since the thinner 5w20 oil lower combustion range of -30° to 35° Celsius. C. Can I add 5W30 to 10W40? Yes, you can add 5w30 to 10w40. Thanks, Own 2 Accords. Can I mix 5W30 and 10W30 oil? Yes, you can mix 5W30 and 10W30 oil, but it’s not recommended. If the deal is really, REALLY good, the I'd also buy all the 10W-40 I could stash/stand having - DS oils are really good in all grades, and. 0L which is a 7. We would like to show you a description here but the site won’t allow us. If the deal is really, REALLY good, the I'd also buy all the 10W-40 I could stash/stand having - DS oils are really good in all grades, and. Here is the reply "Yes, the engine included with the package is a 2 stroke unit. 1549 posts · Joined 2004. You can use it in summer instead of winter. This means it will have a free flow at a lower temperature compared to 10W30. Member. 5w40 vs. Reduced fuel efficiency: Thicker oils can create more resistance in the engine, leading to decreased fuel economy. It’s hard to tell the difference between 5w30 and 10w30 in terms of. But to explain further, the. 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. #10. But no it won't hurt to use 5w30. 5w30 is used for light-duty engines while 10w30 is used for engines which carry heavier loads. 5676 posts · Joined 2009. The 0w30 is a special kind of motor oil. These vehicles can be trucks, SUVs, and others. TCM. 5W30 will give you the best fuel economy and performance. They are both oils that are generally safe for use in your car. Can I Mix 10w30 And 5w30? Assuming your engine is not designed to work with a specific type of oil, mixing two different motor oils shouldn’t pose a problem, provided they have a similar classification. Yes, mixing 5W30 with 10W30 motor oil can affect your engine. Sep 23, 2015. As a result, combining the two oils in your engine may be okay. When you mix motor oils, you deprive your engine of enjoying the full benefits both oils would have delivered if used separately. You can’t mix the two because they aren’t of the same grade. Synthetic 0W-30 will be shear-stable and retain its 30 weight, unlike conventional 5W-30, which shears to 20 weight. Whether it is safe or not to mix oils of different grades depends on the engine. But I would not mind or worry about mixing 4 qts of 0-20 and 0. 10W40. Probably any name brand 5w30, 0w30 or 10w30 will work great. Secondly, you must know the vehicle’s manufacturer’s guidelines for oil viscosity. Apr 15, 2022. 9,808. The answer is yes; you can mix 10w30 and 10w40 oil. #3. If it is running spec oil pressure on 10w30 they stay with 10w30. Thicker liquids, like molasses, have high viscosity and pour slowly. The 5w30 oil will thin out the 5w20 oil and won’t flow as well in cold weather. No one knows if the resultant mixture is better or worse than the unmixed oil without expensive and extensive testing. As per API recommendations (1) for car engines, you can use 10W – 30 oil if the maximum. These two oils have contrasting viscosities and are designed for completely different types of use. Yes, you can mix them. 5 gt really doesn't change it much as you can check in the shell viscosity mixer as its only changing it by 1/5 anyway. Mixing the two oils together can cause the oil to break down and lose its ability to lubricate and protect your engine. I don't see any problem running it in summer. . If the temperature reaches even higher levels, the 10W30 will not be very efficient and you should go with the 15W40 oil. However, you need to know the right way to do this. For example, you can mix 5W-30 oil with 10W-30 oil without problems. This can be beneficial in higher heat conditions or for engines that operate at higher temperatures. Both 10W-30 and 5W30 have the same viscosity at 100°C (212°F), it is the operating temperature of an average engine. It’s worth noting that using a different oil on your car won’t damage the engine; notwithstanding, it may trigger certain unusual signs depending on your car model. However, switching motor oils is not recommended for long-term use. Both 10W30 and 20W40 oils can withstand temperatures up to 100 degrees Celsius. probably to small to notice most of the time. You can mix these two oils and pour the mixture into a vehicle running on 5W30. I may run 10w30 in my Tacoma when the next interval is due. I live in a warm climate and, in theory, 10W30 would be a better choice because of lower volatility (NOACK). So whatever percentage of SAE 30 added is going to jack up the average above even what the 10W. 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. You can buy 30 or 40 weight oil, and you can also get multiple viscosity oil such as 10W-30 or 10W-40. However, the difference in viscosity between the two can impact engine performance, particularly in specific temperature conditions. i do this all the time. The numbers are just a viscosity rating. 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. Nov 27, 2010. We would like to show you a description here but the site won’t allow us. It is entirely safe and okay to mix 5W30 and 5W20. There are no significant damages or problems that you will have to deal with. 5W – 30 and 10W – 30 lubricants have the same viscosity at the operating temperature of the engine. 30 weight goes from about 9. So you can use 5w30 motor oil for your engine because it is recommended and suitable. 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. Mixing 10W30 and 5W30 won’t result. True, there can be different properties between a 5w30 and a 10w30. 5w30 provides better lubrication as a result of its superior flowability; however, the greater thickness of 10w30 grants it a better sealing capability. When motor oils mix inside the car, the engine would still run properly, but not as efficiently as it used to. How does an oil shear its cold rating? 10w30 would either shear down to a 10w30 with a slightly lower cSt or shear down to either a 5w20 or SAE 20. Apr 20, 2004. To mix and homogenize 5W30 and 10W30 properly, firstly pour 5W30 oil into the engine and then add 10W30. mix 10w 30 with 5w 30 ? The owners manuals for a couple vehicles I own describes on the little chart the temperature ranges with which either 5w 30 motor oil or 10w 30 can/should be used. Hearing just a slight knocking on start up till it warms up. In most cases, combining two oils with different viscosities won’t harm your engine and is better than. You can mix 5w30 and 10w30 oil together. You WILL NOT get a 5W by mixing a 10W and a 0W. oiltard. Well, here’s the deal, you can use a 5w30 in both hot and cold ambiance, but a 10w30 is more suitable for hot weather. Both 0W20 and 5W20 have almost the same properties when utilized in fair-weather temperatures, so they are technically compatible. Refer to your owner’s manual for the recommended motor oil for your vehicle. The advantage of a 0w30 motor oil is that the number zero is far from thirty (30) than ten (10). The days of lubricants of the same application, type, and class fighting with each other are within reason, history. It slightly reduces fuel efficiency. Just like mixing full synthetic with semi-synthetic oil – mixing different viscosity such as the 5w30 and 5w40 is not a bad idea, especially if you are running low on oil. You can mix 5W-30 and 10W-30 or combine a lighter-weight oil with a heavier one, in general. Even the oil mix of the synthetic and conventional blend will show you no harm to your engine. There are plenty of choices in 10w-30 synthetic as well as RT6 in 15w-40. So for the question, the answer is yes. So if you want to mix 20w50 oil with a 10w30 oil or if you have to, you can mix them both up. But 10W oil is thicker or has higher viscosity when cool. 5)/2 = 9. But there is a difference in the density of both of these oils. Yes, you can mix oil brands. 6 So you can see the synthetic 5W-30 A3/B4 oil is a thicker oil than the 10W-30 GF. 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. R. . They will mix perfectly. But 10w30 is heavier; therefore, you should avoid using it in winter. 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. The difference between 10W30 and 5W30 is that at freezing temperatures 10W congeals more than 5W. Whether you’re topping your 5W30 engine with 5W20 oil or vice versa, you are definitely not triggering. Adding a 10W-30 to a 5W-30 should be fine for a top-up, but is not ideal for a complete service interval. Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. Because their viscosities are so similar, blending 5w30 and 10w30 engine oils is quite safe. Read on for a guide on how you can mix 10w30 and 5w30 oil. 5W-20 Vs 10W-30; 5w30 vs 10w30; Differences Between Dexos 1 And Dexos 2 Engine Oil; Engine Oil 0w20 vs 5w30; Valvoline vs Pennzoil Synthetic Oil; Category Menu Toggle. S. Because of the differences in the two types. The hot viscosity, the 30 grade, will stay the same if you mix them. In most cases, you can always use the 10w30 oil, but be sure it has the appropriate weight for your vehicle. 0 or 6. Viscosity mixing of oils has little impact on engine performance. Yes, mixing 5W30 with 10W30 motor oil can affect your engine. B&S also recommends 15w-50 synthetic for commercial use, and that is available in Mobil 1. #15. 6,881. 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. Pros: I have 2 new full quart bottles of 10w-30 motor oil for my 90's pickup in my garage. However, you should know that 10W30 has more density than 5W30. Pop, your conditions probably are not cold enough that you would notice the difference in pull-starting between a SAE30, 5w30 or 10w30 w/ this type of equipment. The same brands would mean that they are compatible in terms of their additives. Frankenstein by saving a 5 qt oil jug so you can mix them in the celler (or attic) on a dark and stormy night. As a result, combining the two oils in your engine may be okay. First, it’s important to understand the numbers in motor oil grades like 5W30 and 10W30. It is safe to mix 5w20 and 5w30 as long as you follow some recommendations. 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. I avoided 10w-30 until I did a pour test comparing RT6 and 10w-30. While the 5w30 would still flow well in high. Heavey Equipment Mechanic. There is no mention of 5w40 motor oil in the recommended list. Sep 11, 2012. If you want to come up with your own oil mixture, just check the oil number of the two oils. The difference between 10W30 multi – grade and straight grade oil is that it has been formulated to provide a 10W viscosity at very low temperatures to aid in cold-cranking in heavy engines. In some cases, this may even be a better option for people who live in colder climates. Yes, you can use 5W30 instead of 10W30 in a lawn mower, however the oil type, viscosity and quantity should be based on the manufacturer’s specification for the lawn mower. Moreover, we’ll then look at whether or not you can mix 10w30 and 5w20 engine oils for your car.