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. You can mix 5W-30 and 10W-30 or combine a lighter-weight oil with a heavier one, in general. Mixing 10w30 and 15w40 motor oils is generally acceptable but not recommended unless it’s in an emergency. You may combine 10w 30 and 5w 30. 5w30 oil is thinner than 10w30 oil because of its lower viscosity. Yes, you can mix 10w30 and 5w30 engine oil. On the other hand, if you add 5w30 oil to a 10w40 engine, you’re taking a bigger risk. Actually, a stack of 10w30 oils including a 5w30 HDEO on the approved CES 20086 list. Mixing SAE 30 and 10w30 is a terrible idea and might have you counting losses. However, this doesn’t mean you can go about it without caution. Bestseller No. Nick778, Make things easy on yourself and run some Mobil 1, 0w-40, or perhaps the Redline or Amsoil 10w-40 synthetics. While they are both designed to lubricate your engine,. The 5w40 is not in the recommended motor oil, but you can still use it if you want to. Now, let’s address the question of whether you can mix 5w30 and 10w30 oils. Say we add a quart of 5w30 to 2 quarts of straight 30 weight. The engine will not work correctly, and if you use the mixture for a long time, the engine will be significantly damaged. 5 qt regular in my 1993 Nissan Pathfinder. Can I add 5W30 to 10W40? Yes, you can add 5w30 to 10w40. If you are a practical person, just go ahead - after all it is your car. 2. 0. Yes, you can mix 10W30 with 5W30. As briefly answered in the intro paragraphs above, the simple answer is YES. Here is the reply "Yes, the engine included with the package is a 2 stroke unit. We would like to show you a description here but the site won’t allow us. Find out how to mix them safely and why it is not recommended, and what. Use the oil that is called for, every time. 10w30 is optimal in a hot engine up to 212℉. Yes, you can mix 0w20 oil with 5w20 oil. Nothing will happen if you put 10w30 instead of 5w30. This changes how well the two oils work together. For example: Valvoline Maxlife Synthetic. Can I mix 5w 30 with gas? It should be fine. I may run 10w30 in my Tacoma when the next interval is due. It impacts the resistance of the engine to oil flow. To get 10W you need at least 2. THE 10W30 OIL & ITS BENEFITS. In an 07 I do no think it would be an issue at all to go 2. But, it doesn’t pose any harm to your engine. The 10w30 will be thicker during cold starts than 5w30, but once the engine warms up, their viscosities are similar. Avoid spilling during mixing the oil as it can make a burning scent. 10w30 vs 20w50 Chevrolet . . Basically 2 qt synthetic and 1. You should use SAE 30/SAE 10W-30 oil on most mowers. 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 component. 5W-25 for a car you actually care about, I wouldn't. My oil mix is the same as your friends (5W20, 5W30, 10W30). As a rule of thumb, for a modern (API SM) SAE 30 I think if winter temps in your area routinely drop into the lower 20F range (or lower) you need to use 10w30 or 5w30. Here is a comparison of 5W-30 vs. Learn more about recycling used oil at. Wisconsin. Both oils have different viscosities and characteristics, and combining them can alter the oil’s protective properties and reduce its effectiveness. 0TDI PD non DPF. However, it’s essential to consider the. Regular 10w30 oil can be used and mixed with the gas, or 2 stroke oil. 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. TCM. 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. Can you mix 5W30 and 10W30 engine oils? Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. It is best to use the same manufacturer and stay consistent with it. 7%. The oil requirements for your engine will vary depending on the temperature you operate at. For starters, oils are not made to be mixed. 10W-30 synthetic oil’s range is between -25°C/-13°F to 30°C/86°F (sometimes -30°C/-22°F to 35°C/95°F) while a 10W-40 is from -30°C/-22°F to 40°C/104°F. 5, so equal parts give a cSt half way in between (8. 8. Additionally, the two oils have different additives. The short answer is, yes, you can technically use 10W40 instead of 10W30. A misadjusted/clogged carburetor, intermittent misfire from a bad coil pack, misadjusted valves, etc. Yes, you can mix 5W-30 and 10W-30 motor oil without causing any damage to your engine. Sort by Oldest first. The main difference between 5w30 and 10w30 is that the latter has a higher Viscosity Index (VI) than the former. Yes, you can mix oil brands. From Shell. Viscosity decreases as the temperature of the oil increases. This is because. Location. 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. Feb 2, 2006. There's been talk before of owners using too heavy of a wt. In a 5w30 engine, you can add 10w40 oil without seeing any major negative impact. This means it will have a free flow at a lower temperature compared to 10W30. Hi, I was curious as to the % of synthetic oil in the Castrol synthetic blend oils. 50’s & 60’s era 2 cycle engines used SAE30 grade oil @ 16:1 ratio. So, we can say you can mix 10W30 with 5W30 safely and perfectly. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. SAE 10W-30 is far too thin to provide protection in a 2 cycle engine, and it contains the wrong additives that can cause ash deposits and plug whiskering. 7 Liter , Mobil1 Synthetic SS 5W-30. 0. But some car owners would say that you should not mix 0w20 oil to 5w20 oil if your vehicle is still under warranty. #4. I certainly think it would be pointless. Both are the same viscosity at operating temperatures. The 10w30 motor oil is suitable for engines using advanced fuels such as biofuel and biodiesel. The engine is the 1999 5. 30 weight goes from about 9. The 5W-30's are in the 10's. If they originally recommended 10W-30, they you can use 5W-30 or a mixture. 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. Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. It’s always essential to consult your vehicle’s manual or a mechanic before making any. For a 2014 RAV4 in Australia, they say you can use: 0W20, 5W30, 10W30, 15W40 or 20W50 Given you climate ("Nebraska. Whether you’re topping your 5W30 engine with 5W20 oil or vice versa, you are definitely not triggering any harm or potential damage to the engine’s core components. Yes, you can mix 5w30 and 10w30 oils. The 10W30 oil – While still quite “fluid”, this oil is a little bit thicker at low temperatures than the 5W30 oil, making the process of starting your engine a little bit harder. The 5w30 motor oil is synthetic, and it has a viscosity of five (5) in low temperatures and thirty (30) in high temperatures. The act is not recommended, but it is not prohibited also. So we wind up with 8. The answer is yes. 5%. They are both oils that are generally safe for use in your car. The engine will never notice the difference, and you or your friend won't either. High mileage oil works in a lot of cases where seals are the cause of the oil loss. Can You Mix 5W30 and 10W30 Oil? No – you shouldn’t mix engine oils with different specifications like this. I'd probably stick to Royal. Although mixing the same grade engine oils such as sae30 and sae40 is acceptable mixing two different grade oils is not advisable. 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. 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. Apr 15, 2022. In warm climates, they will act very similarly. So (30+30+25)/3 = 28. If you use 10W-30 instead of 5W-30 in a vehicle designed for 5W-30, you may notice some differences in performance, particularly in colder temperatures. Furthermore, use only engine oils designed specifically for your car in terms of weight. As such, mixing synthetic. Again, when buying motor oils, you should be careful of the brand. Can you mix 5W30 and 10W30 motor oil? 5w30 and 10w30 are two of the most common motor oils. Both have a winter rating of 5, but 5W-20 has a weight of 20 in warmer conditions, while 5W-30 is thicker with a weight of 30. 10w30 is for the summer and spring seasons. DS 30-weights are very thin (9. 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. If you want to strike a balance between the affordability of conventional oil and the benefits of synthetic oil, opt for a. However, this is only fine when you need to add more oil to the engine. This motor oil is used commonly in different types of vehicles. Manufacturers designed these oils to protect the engine. May 19, 2009. #14. But, even if you pour in the 10w30 without removing the old oil, nothing would damage the engine, but you’d notice a significant drop in performance as the oils try to mix and flow. But for the guide, you can use 5w40 motor oil in starting your engine in low temperatures. There is no mention of 5w40 motor oil in the recommended list. It is recommended for use at -13°F up to 95°F / -25°C up to +35°C (outside temperature). 10w30 – NOACK volatility rating that clocks in at 7%. So, you can mix any brand/grade/type of motor oil any time you want. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them. However, 10w30 is a multigrade oil that performs well in hot and cold temperatures. such as mixing 5w20 and 5w30, using 10w30 instead of 5w30, and mixing 5w30 with 5w40. 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 5w30 with 10w40? As posted above, mixing 5w0 will give you an oil that performs somewhat better in the cold than 10w40, but less good cold than 5w30, and that has a viscosity a bit higher than 5w30 but a bit lower than 10w40. They will mix perfectly. SAE 30 oil is not as effective in colder weather as the 10W30 oil. #4. Before using the 10w30 you just bought in place of your old 5w30, make sure the old 5w30 is completely removed. 25 qts of 0-20 and 2. My car also calls for 5W30 or 10W30. Their chemical compounds are the same. 1). But it’d be best to mix oils from the same brand – the additives won’t be too different, so the oils will have better chances of mixing properly to deliver the best possible results. As for oil viscosities, mixing 10W30 and. 5w30 and 10w30 are two of the most common motor oils. This means that if you want to, then you can mix 0w20 oil to 0w30 oil. i. Stick with synthetic oil. By industry agreement/specification, all brands of oils will work fine together. 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. One of the most. Yes, you can mix 5W20 and 5W30 engine oil as it won’t hurt the engine immediately. Can you mix 5W-30 with 10W-30? In general, it is not recommended to mix 5W-30 and 10W-30 motor oils. The short answer is yes, you can mix them. The primary distinction between 5W-20 and 5W-30 oils is their viscosity. Canada. In the cars I mix 1 qt of Mobil 1 T&S 5w-40 with either 4 qts of Mobil 5w-30 or Mobil 10w-30, so thinner is again fine. 5W30 and 10W30 are very close in viscosity. As the viscosities of 5w-30 and 10w-30 are ranked. More specifically, 0W30 oil is thinner than 5W30 at low temperatures. #2. 3w36. I have the following all in the same 5w40 spec. The short answer is yes, you can use 10W30 oil instead of 5W30 oil in your lawn mower. Gather your materials: You will need two containers of motor oil, one 5W30 and one 5W40. There is no way to know exactly what the final viscosity is though, short of testing. Below 40°F and down to -10°F, use 10W-30. Therefore, you can mix 5W30 with 10W30 with no ill effects whatsoever. Pennzoil Ultra Platinum. Quoting Stephen Miller from Shell: “For instance, 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. When looking for SAE 30 oil replacements, you should ensure that the equivalent has the same flow rate as SAE 30 at a normal operating temperature. Portions of the 8oz. 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. But it’s not necessarily ideal. It is not advised for car drivers to do so. Do not, however, mix synthetic and normal oils (unless the synthetic's manufacturer specifically says it's OK). Apr 2, 2010. This means that the viscosity will rebalance and will create a new one. If you use 10w30 regularly in. However, 0w30 is already noticeably thinner at 100F compared to 5w30 so even if your engine sees 10-20F often 0w30 will be beneficial in my opinion. So for the question, the answer is yes. The answer is yes. For example, if you own a passenger can or any other modern-day vehicle, the fluid 10w30 will be more suitable. 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. The blend would have to be tested to get the low-temperature viscosity rating. 2 quarts, but no more than 4. 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. No Doom and Gloom will result.