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. You will not see a immediate failure if you mix the oils, but it will cause premature wear. Mixing different weights is bad because engines are optimized to run on one or another so mixing 5w20 with 10w40 means half that oil is either too. 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. Can I use 5w20 instead of 10w30 in my lawn mower? Yes. Mixing the viscosity of oils will not have any effect on the engine. Fuel Efficiency: Lower viscosity oils generally offer better fuel efficiency. 5W-30 is going to have the same viscosity as 10W-30 when the oil is hot. Basic answer is, if your still under warranty, you better use 12W-30 or vyou will void the warranty. In the case of 10W30 oils, the temperature range is -25°C/-13°F to 30°C/86°F. 00 a quart, why not continue to follow the manufactures recommendations. While the 5w30 would still flow well in high. Now let’s break it down in order. Frisco, TX. New Jersey. 4,373. VOTE. Winter-grade oil stays thin even as temperatures drop, which means it will flow straight to the engine at. Even if you mix the synthetic and conventional blends of these two oils. So, we can say you can mix 10W30 with 5W30 safely and perfectly. . I don't worry if the 10W30 and the 15W40 are the same brand either. The choice between 5W-30 and 10W-30 depends on the specific needs of your engine and the driving conditions you encounter. 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. Can I mix in 5w-30 oil with 10w-30 oil? Heavey Equipment Mechanic. The two oils are very similar, and they will both do a good job of lubricating your mower’s engine. If the oil will be in the engine during winter and you live in a place where. 9, it's 5w-30. My girl friend's 2. Yes, you can. Can I mix 5W-30 and 10W-30 oil? Mixing different types of oil is generally not recommended, as it can negatively impact engine performance and potentially cause damage. Yes, you can mix 10w30 and 5w30 engine oil. Each oil weight gets designed for specific weather conditions and driving styles. 10W-30 Engine Oil to find out which one is best for you. You can also use 10w30 motor oil in cold weather, but it is preferred in hot weather. Adding 10W30 to your current mix is safe and will not cause your engine to run any worse. It improves fuel efficiency. Synthetic 5W-30 is at a significantly lower viscosity at 150c vs. However, the resulting viscosity might not be consistent throughout, leading to unpredictable performance. In Australia you can use 0W20, 5W30, 10W30 and 15W40 in that engine. 5, so equal parts give a cSt half way in between (8. If you want to come up with your own oil mixture, just check the oil number of the two oils. So my question can I grab 2 new quarts of 5w30 and mix it with my new unused 10w30 of same brand/manufacturer? P. This is because both oils have the same API classification (in this case, SN). Temperature Range. Daily Drives: -2003 Toyota Tacoma PreRunner XtraCab, 2. The 5w30 has more viscosity index improvers vs the 10w30 so technically the 10w30 would have more oil that lubricates the engine. After doing a lot of reading on this subject for my new-to-me Ram 1500, I decided to bring 5W-30 synthetic oil when I took my truck in to have the oil changed at the dealership who allows me to provide my own oil and filter. 4L. K. Because he wants to buy his oil when its on sale at costco and they have 5w-30 & 10w-30 more available than the recommended 5w-20. You shouldn’t let this notice stop you from switch your engine oil; here’s what you should know. 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. Can I mix 5W-30 and 10W-30 in my mower? (both fully synthetic) Thanks Dan Upvote #2 04-21-14, 03:14 PM Norm201. F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. To better understand, in a 5W-30 oil, the "W" stands for winter performance. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. Yes, you can safely mix 5W20 and 10W30 engine oil. I have an hour meter on my mower, and it shows that I use it 60 to 65 hours a year. The 5w40 motor oil indicates the weight and the viscosity of the engine. Motor oil is a vital component of any engine, ensuring its smooth operation and longevity. Can You Mix 5w-30 and 10w-30? – Safety Aspects. Jason. O. In warm climates, they will act very similarly. Yes, you can mix 10W30 with 5W30. However, 10w-30 oils tend to have significantly lower volatility than 5w-30 oils. Posts: 10,873 Upvotes: 1,731 Received 703 Upvotes on 625 Posts I don't know the specifics but I don't think for lawnmower application it wll cause any harm. I was wondering is it ok to continue using 5w-30 Pennzoil Platinum Synthetic Motor Oil in my Yamaha F75 Outboard. Standing in the middle of this comparison, 5W30 has a higher viscosity than 0W30 but lower than 10W30. #9 · Mar 3, 2014. So if you mixed 5W20 and 5W30 engine oil or accidentally used 5w30 instead. What Happens If You Mix 5W20 With 5W30? Nothing significant will happen if you mix 5W20 with 5W30. Or 10w30 into 5w20. The upside of synthetics is they handle heat much better. Both oils. Well, mixing won't hurt a thing. Read on to find out more! Quick Answer: Yes, you can put 10w30 in a 5w30 engine, but it may not be the optimal choice. Engines on most outdoor power equipment operate well with 5W30 Synthetic oil. Is it safe to mix different types of engine oils? Mixing. The net effect of adding 1/2 or 1 gt of anything in your 4. Nebraska. Aug 2, 2011. You can buy 30 or 40 weight oil, and you can also get multiple viscosity oil such as 10W-30 or 10W-40. I have never ever seen an owners manual that recommendeds. It is best to use the same manufacturer and stay consistent with it. Apr 25, 2013 / 5W-30 or 10W-30. It is not recommended. This means that the 5w30 motor oil will be much better than the 5w40 motor oil. But it's not a good idea because different brands have proprietary or special additives. I'd probably stick to Royal. So, feel free to consolidate all vehicles to a 5w30 or 10w30. Mixed engine oil is better than low, dirty, or no oil. Answer: Absolutely not. This ^. Can You Mix 5W30 And 10W30 Most engine oils will have little trouble mixing with one another, as long as they’re of a similar type. These specifications are to be used as guidelines only. To conclude, you can mix 5W20 & 5W30 provided that they’re from the same brand and API. This must be some kind of an old car and manual. The short answer is yes, you can mix 10w30 and 5w30 under certain circumstances. Can I Mix 10W40 and 5W30? Mixing different oil weights can cause damage to your engine sometimes. Final Thought on Mixing 5w20 & 5w30. It’s pretty much okay to mix. 10w30 oil is thicker and heavier than 5w30 oil because it has a higher viscosity at low temperatures. Stick to the approved oils. Viscosity (a fluid's resistance to flow) is rated at 0° F (represented by the number preceding the "W" [for Winter]) and at 212° F (represented by the second number in the viscosity designation). Yes, you can use 10w30 instead of 5w30. 5w30 motor oil, the 20 indicates that the oil has a lower viscosity and is thinner at higher temperatures. All petroleum-based engine oils are given a rating system, or SAE weight, to determine their viscosities and the ideal temperature that the oil performs best at. As a car driver, you must know that motor oil is used as a lubricant. There are, as we’ll see later, pros and cons to doing so and mixing engine oil weights. You can use it in summer instead of winter. Most oils will mix perfectly, provided they have a similar synthetic. After it is out of warranty it's your call. So, 0w20 is a thinner oil than, say, 10w30. Having a GDI engine with timing chain, however, the lack of Dexos1 Gen2 certification for the 10W30 is a deal-breaker. 5w30 and. farking jiffy lube. Use a high mileage 5w30 in the winter and 10w30 in the summer. Jun 3, 2014. Mixing 10W30 and 10W40 Motor Oils. In the truck I mix 9 qts of Delvac 15w-40 and 3 qts of Mobil 1 T&S 5w-40, so there shouldn't be a problem with the 40 weight, and thinner than an assumed 12. So, oils with a rating of SAE 5W-30 will perform at lower temperatures like an SAE 5W oil and lubricate at higher outside temperatures like an SAE 30W oil. S. The engine is the 1999 5. While cold, 10w-30 would be a little thicker. Jan 7, 2021. You'll get something around a 10w40, perhaps a thin 10w40, if you mix them 50/50. #7. 10W-30 could theoretically work in your area then as long as you don't plan to drive anywhere that goes below lets say 40 F. However, both of the oils can withstand temperatures up to 100 degrees. But 10w30 is heavier; therefore, you should avoid using it in winter. Whether mixing 10w30 and 5w30 causes issues depends on a few key factors: Oil chemistry – Mixing oils with vastly different chemistry/additives is risky. Jun 24, 2018. Mixing different oil weights can cause your car to run less efficiently. Run 93 octane. As briefly answered in the intro paragraphs above, the simple answer is YES. Read on for a guide on how you can mix 10w30 and 5w30 oil. After it is out of warranty it's your call. No one knows if the resultant mixture is better or worse than the unmixed oil without expensive and extensive testing. Yes, they can be mixed without problem. 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. the engine is the 3. So, it’s better to choose the oil type wisely depending on. Yes, you can consider using 10w30 instead of 5w30 in the summer when temperatures are higher. The short answer to this is no, 10W-30 oil is not the same as SAE 30. The 0w30 motor oil is a particular type of motor oil because of its low viscosity, and it can also be a replacement for 5w30 or 10w30 motor oil. + 2oz Auto-RX and K&N filter, replaced. And the 10w30 is for a higher viscosity engine. So 5x20. When to Use 10w30 vs 5w30. Would like to eventually transition to the Delvac if it’s not a problem but still have a 2 gal jug of the Super tech 15w40. Of course you can. 5W30 and 10W30 are very close in viscosity. Not open for further replies. Given that a 0w-40 or a 5w-40 likely has ACEA ratings, and that those ACEA ratings aren't going to be A1/B1 A5/B5, I wonder about mixing them with an ILSAC lube. It is not advised for car drivers to do so. 3, Ur 5w30 might be Cst 10. More so, 5w30 is liable to offer more solid protection to your engine than the 5w20. 5W20 will flow easier in cold/low temperatures to keep your engine parts. I would just use the 10w30. Can I mix 5W30 with 10W30? If your car contains a typical multi-grade oil, such as 5W-30 or 10W-30, you can use most any multi-grade oil to “top off” your oil and bring it up to a proper level. 15w-40 RT6 seems like a good choice to me. 1qts. On my daughter's oil consuming tercel, I add 1 qt of 20-50 Castrol HM to see if thicker. It’s possible to mix both 0W20 and 5W20 engine oils. straight 30 mineral oil. #5. The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups. . Mixing 5w 30 with 10w 30 is permissible as long as the ratio is appropriate, but it is not recommended by most vehicle manufacturers. All same viscosity grade for warm operation, 30 weight. It’s not necessarily ideal, but. Refer to your owner’s manual for the recommended motor oil for your vehicle. As 5W30 is a thin oil, mixing it with 10W40 will give you a much thinner oil. 10W30 and 10W40 Defined. 7 Liter , Mobil1 Synthetic SS 5W-30. Yes, you can mix 20w50 oil with 10w30 oil. However, it is not recommended to do so. You can mix 5W-30 and 10W-30 or combine a lighter-weight oil with a heavier one, in general. Engine oil has a higher sheer rating than hydraulic oil. Sep 23, 2015. I had a 2012 outback which used 5w-30 synthetic oil, now I have a 2015 out which uses 0w-20 synthetic oil. Mar 22, 2002. Compatibility of 5w30 and 10w30. The 15w40 motor oil can be used in off-highway diesel equipment, farm. 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. That said, you can mix 10w30 and 5w-30, but it’s. Apr 19, 2010. 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. Still, the safest way to do this is. So if you want to mix 20w50 oil with a 10w30 oil or if you have to, you can mix them both up. Which Oil Is Best For My Car SAE30 Or 5w30 Or 10W30? If you owned an old car then using a single-grade engines oil such as SAE30, 40 or any other would. Using 5w40 oil is beneficial to diesel engines. O. But 10w40 oils have an added. Can I Use 10w30 Instead of 5w30 in Summer. Yes, you can consider using 10w30 instead of 5w30 in the summer when temperatures are higher. The 5w30 when cold will still be thicker than the 10w30 when hot anyways so it doesn't matter. In the same case, 10w30 oil can take hours to ignite in winter. Cons: I only see ( " 5 "w -30 ) available at my local auto shop nowadays, never the 10w. In cold climates, the viscosity of 10w40 is 10. So again, adding or mixing two oils is not advisable. However, the 10W – 30 oil will be thicker when it is cold. Here’s a look at 10w30 and 5w30 and how they affect your engine. If you are concerned get the thicker syn to mix in the blend and call it a day (i. As the viscosity of these two oils is very close, they will mix properly. Each oil weight gets designed for specific weather conditions and driving styles. So for the question, the answer is yes. However, they shouldn’t be. Mixing 5w30 and 10w30 still yields a 30 wt.