The primary difference between 10w30 VS 5w30 oil is their viscosity. It calls for 5W-30 motor oil. Yes, it won’t hurt their car engines, but it’s not a recommended practice. The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. There are no significant damages or problems that you will have to deal with. I'm about to do a super frankenblend in my moms car to use up my leftovers. 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. In an 07 I do no think it would be an issue at all to go 2. The answer is yes; you can mix 5w20 and 10w30 oil. 5W – 30 and 10W – 30 lubricants have the same viscosity at the operating temperature of the engine. New Jersey. If you mix that oil, which chemically has no issues at all oh, the 5 W 30 oil will behave like 5 W 30 oil and the 10 W 30 oil will behave like 10 W 30 oil. The engine oil will flow slower than 5w30 when it is cold. To mix and homogenize 5W30 and 10W30 properly, firstly pour 5W30 oil into the engine and then add 10W30. And when the weather is cold, 10w30 will circulate and help your engine get started a lot quicker. In a mild climate and an engine spec'd for a 30 grade in the first place it's the best choice IMO. Odd, I'm running a 0w30 GC / 5w20 gtx HM mix myself in one of my mowers that calls for 10w30. I've been around here for a long time, but I find this to be somewhat perplexing. So is it okay to mix the heavier 10w30 oil with 5w30 oil?So in the 5w30, we have 25. Engines run fine! F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. However, using thicker oil than recommended will put more stress on the engine resulting in premature wear of engine parts and poor fuel economy. 275 posts · Joined 2016. These two oils only have a difference of five points on the scale, so mixing can be done successfully. Daily Drives: -2003 Toyota Tacoma PreRunner XtraCab, 2. Connecticut. So if you mixed 5W20 and 5W30 engine oil or accidentally used 5w30 instead. However, a 10w30 motor oil will perform better than the industry standard of 15w40 motor oil. Mixing 5w 30 with 10w 30 is permissible as long as the ratio is appropriate, but it is not recommended by most vehicle manufacturers. Location. Please explain “that way”. SAE 30 is a single-grade motor oil that provides adequate lubrication to engine parts when operating under hot viscosity conditions. If you have the 100C cSt viscosity numbers we can calculate it better. 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. Adding 10W30 to your current mix is safe and will not cause your engine to run any worse. Also, since turbos run at such high speeds and temps, the right type of oil is critical. Yes anytime with a new small engine or really any engine you will get some silver like that in the oil but after a few changes it will go away. #6. However, the 10W – 30 oil will be thicker when it is cold. Mar 29, 2009. 10w30 oil type covers a significantly smaller range of temperature. The main difference between 5w30 and 10w30 is that the latter has a higher Viscosity Index (VI) than the former. You can’t mix between regular/synthetic blend/full synthetic but mixing weights, especially if they’re by the same manufacturer, is no problem. 5w30 oil, on the other hand, is thinner and designed for use in colder temperatures and lighter engine loads. But, it doesn’t pose any harm to your engine. There's been talk before of owners using too heavy of a wt. Example 5w20 may have a cSt of 8. There is absolutely no risk of harming or potentially damaging the engine’s essential components by using 5W20 oil to top off a 5W30 engine. This changes how well the two oils work together. Whether you’re mixing 5W30 and 5W40 from the same brand or different brands, all that has been shared in this article still applies. 5w30 is a multi-grade oil, on the other hand, sae30 is a monograde oil. But, we recommend you not mix or blend 10w30 and 10w40. Location. One last point before you read on. The answer is yes, you can use 5W-30 oil in your lawn mower. It would almost definitely end up being a 40 at 100C, but the W-number is not possible to predict. W represents winter and not weight. The same brands would mean that they are compatible in terms of their additives. As a car driver, you must know that motor oil is used as a lubricant. There isn’t a big difference between 5w30 and 10w30, but they have different viscosities. s then devide. The short answer to this is no, 10W-30 oil is not the same as SAE 30. J. Above 32°F (0°C), use SAE 30. 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. 5w30 – 5w-30 counterpart registers 9. Stick with synthetic oil. Can You Mix 5w-30 and 10w-30? – Safety Aspects. Yes, you can mix 5w30 and 10w40. If you find it necessary to mix brands of oil, use the same viscosity grade and API service category to maintain performance. You can mix 5W-30 and 10W-30 engine oils, but it’s not necessarily ideal. While both 5W-30 and 10W-30 oils are commonly used in vehicles, they have different viscosities, with 5W-30 being thinner than 10W-30. Whether it is safe or not to mix oils of different grades depends on the engine. They can’t be mixed during low temperatures. My 2GR's run 30 and 40 grades. Portions of the 8oz. For older engines the new high milage oils are helpful. Then we add that to the 8. Engine oil that is not rated for use in Diesel engines will not last and will severly damage an engine. Oil is pretty much never what kills a small engine. 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. Nov 21, 2011. For example, if they’re 5W-30 and 10W-30, then you can use 80% of the amount of the 5W-30 and 20% of 10W-30. 5W30 oils are easier to move in cold starts, on the other hand, 10W30 oils lubricate the engine. According to Mobil's website, it is OK to mix 2 different viscosity's of Mobil one as they are completely compatible. 0 or 6. It is safe to mix 5w20 and 5w30 as long as you follow some recommendations. 5w30 is less viscous, so it can reach even the parts of the engine that are hard to reach for lubrication. I would just use the 10w30. W. The engine is the 1999 5. My oil mix is the same as your friends (5W20, 5W30, 10W30). For example, you can use 5W30, and 10W30 as SAE 30 motor oil alternatives. The blend would have to be tested to get the low-temperature viscosity rating. 7%. In most cases, combining two oils with different viscosities won’t harm your engine and is better than. You can do it with 5w30. Yes, you can use 10w30 instead of 5w30. #2. We recommend you take a look at your. Location. You can mix 5W30 and 5W20. On the other hand, if you add 5w30 oil to a 10w40 engine, you’re taking a bigger risk. 4,373. It doesn't matter that they're from the same manufacturer. In the 10w40 we have 30. This article is a must-read for those who want to fully comprehend the implications of switching between these two oil types. Pour the 5W30 into a mixing container: Place a clean container on an even surface and carefully pour the entire bottle of 5W30 oil into it. For example, you can mix 5W-30 oil with 10W-30 oil without problems. Aug 2, 2011. #4. Related: Can you mix 5w30 and 10w40?You can mix different grades of oil with no bad effects. The main difference between 5w20 and 10w30 Oil is that the 5w20 is thinner and more suitable for low-temperature conditions while the 10w30 is thicker which gives it better protection but also makes it less efficient in cold weather. 10w30 oil is thicker and designed for use in higher temperatures and heavier engine loads. Not only does this in-depth 10w30 vs 5w30 guide. In this video, I will just talk briefly about a couple of questions that most frequently been asked when changing oil: can you mix different oils with differ. Can You Mix 5w30 and 10w30 Oil? (Expert Opinion) How Long Can I Run My Car With Too Much Oil? Car Brake System Parts Explained in Detail; Best Car Batteries. In summary, what you should know is that 5w30 oils are less viscous and flow easily than 10w40 oils at both high and low temps. are what kill them. #7. So to get 10W-40 Mobil 1 put in 2 quarts of 5W-30 and top off with 15W-50 (blend HTHS about 4. Mixing 10w30 and 5w30 can be done safely in certain situations. Yes, you can mix 5w30 and 10w30 oil. Thanks to their close viscosity, mixing the two oils will have no damaging effect on the engine. You'll find most SAE 30's run 11 to 12 cSt @ 100C. Therefore, you can mix 5W30 with 10W30 with no ill effects whatsoever. So, the main point is this; you can use 5w30 instead of 5w20 for your Jeep and not notice any significant change in how your engine works. Additionally, the mixture of 5w30 and 10w30 could lead to various issues. Avoid spilling during mixing the oil as it can make a burning scent. 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 will not affect the engine’s performance or efficiency. 5w30 – has a rating of around 11. However, it is crucial to check your vehicle’s owner’s manual to ensure that 10w30 is the correct weight for your car. A mixture of two motor oils that have. Generally you use sae 30 in the older flatheads but if it's OHV then they recommend that you use a multi-grade oil instead. . Apr 15, 2022. Besides, according to the PSC oil viscosity comparison chart, ISO 100 is equivalent. #4. The following number is the viscosity, or thickness, of the motor oil at low temperatures. Location. I've run straight 5w20, mixed 5w20 and 5w30, straight 5w30, and mixes of 5w20, 5w30, 10w30, and 15w40, etc. If you're mixing the leftovers from 5qt jugs to use in your lawnmower, yes. Get outstanding performance for your four-cycle gasoline engines. The final viscosity at high temperature will still be a 30-weight. Mixing different oil. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. Most new cars today run 5W30 and most oil change shops use 10W30 for everything. 0. Related Posts: 5w30 Vs 10w40 Engine Oil; Can I Use 10w30 Instead Of 5w30? Accidentally Put 5w20 Instead Of 5w30; 5w30 Vs 10w40 Engine OilPublished by Dustin Babich on 29 May 2023. There are some minor. If the engineers spec/use obsolete technology, and refuse to license the spec requirements, then f@^& 'em. Can I use 0W-30 instead of sae30? A: NO, this is NOT the same as 0W-30 oil. It will not hurt you machine at all and this time of year it might be a little better for it, cold weather and all. 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. You can mix 5w30 and 10w30 oil together. 10w30. To get 10W you need at least 2. So, you can mix any brand/grade/type of motor oil any time you want. Dec 27, 2003. If you can't find it, you can use 5w20, but then that must be replaced with 0w20 at the next oil change. 3, Ur 5w30 might be Cst 10. The engine will not work correctly, and if you use the mixture for a long time, the engine will be significantly damaged. For engine oils, you may use synthetic 5W30 or 10W30 oils in all temperatures. I use Amsoil 4 Stroke 10w30 and my snow blower starts very easy in temperatures well below yours and the oil stays clean for a long time. Synthetic 5W-30 can be used in all temperatures. Yes, you can use 10w30 instead of 5w30 in most cases. 10w30 – has a rating of around 5. It is entirely safe and okay to mix 5W30 and 5W20. Pennzoil Ultra Platinum. Title: Layout 1. If they originally recommended 10W-30, they you can use 5W-30 or a mixture. In other words, it's far more robust than the 3. However, if you do use 10w30 in a 5w20 engine, it may lead to several negative effects on your car –. Make sure you use the same brand for both oils so that they blend properly. Yes, you can mix 20w50 oil with 10w30 oil. While it is technically possible to mix 5w-30 and 10w-30 oil in a car, it is not recommended and could potentially cause problems. Mixing the two will dilute the characteristics of 5W-30 and likely result in poor engine performance. Synthetic oil maintains it's viscosity over a wide range of temps. PlasmaBomb Lifer. By default, the oil is thinner than the 10W30 engine oil in cold weather. Car takes 4. 5W-30: also works well at all temperatures, and has a slightly lower oil consumption. Title: Layout 1. Say you have 10w30 in your engine. Can You Mix 5w20 and 10w30? Mixing these oils won’t cause huge harm to your vehicle but it is considered safer not to mix multi-grade and straight-weight oils. So (30+30+25)/3 = 28. Furthermore, use only engine oils designed specifically for your car in terms of weight. Can You Mix 5w20 And 5w30. 4L. 5W30 motor oil is suitable for use in today’s gasoline-powered vehicles. Which oil is better 5w30 or 10w30? 5w30 is less viscous than 10w30. Running 10W30 in addition to 5W30 will not harm your engine. Yes, you can mix 10w30 and 5w30, but it's not recommended. Can I use 5w30. Engine oil has a higher sheer rating than hydraulic oil. Learn more about recycling used oil at. Stick with M1 5w30 High Mileage, which is. Only at cold start up are things a little different as 5w- flows better than 10w-. 5w30 oil is an excellent option if you drive your vehicle in an area that experiences significant temperature shifts throughout the year. Not only that, you could run that engine on 0-40 5-30 10-40 etc. #7. 5)/2 = 9. If you lived in Siberia, I would be a bit more concerned about it. Quick Answer: Yes, you can put 10w30 in a 5w30 engine, but it may not be the optimal choice. Yes, you can mix 10W30 with 5W30. I found no reason, period, to run a 15w40 for bearing protection, bio-diesel, or towing in the 6. Whether you’re mixing 5W30 and 5W40 from the same brand or different brands, all that has been shared in this article still applies. Can you mix 10w30 and 5w30? General speaking, mixing 10w30 vs 5w30 oils should not cause issues as both have similar viscosities at operating temperatures. In fact, the viscosity difference between 10W30 and 5W30 is essentially neglectable.