Yes, you can use 5w30 instead of 5w20 in your ford car. There are, as we’ll see later, pros and cons to doing so and mixing engine oil weights. Mahzurrah! Mar 5, 2021. #2. Stick to one type and viscosity rating. Furthermore, when using oil additives, make sure the additive is made. 5W-20 flows more easily due to its lower viscosity; however, at 212°F, 5W-30 is slightly more viscous. It cost $2 a quart more too. In the case of lawn mowers, two-stroke engine oil is mixed with the gasoline before it goes into the tank. The blend would have to be tested to get the low-temperature viscosity rating. Thanks Again. The 10w30 motor oil is suitable for engines using advanced fuels such as biofuel and biodiesel. It will not affect the engine’s performance or efficiency. Thanks to their close viscosity, mixing the two oils will have no damaging effect on the engine. So we wind up with 8. 5w30 & 10w30 have the same degree of viscosity at the same temperature, which makes them blend nicely. See moreWell, the answer isn’t quite as simple as a yes or no. Also Read: Can I Use 10w30 Instead of 5w30? When to Use 10w30 Oil. Different oil producers have different standards, and it is noticeable in the oil quality. Here’s a look at 10w30 and 5w30 and how they affect your engine. 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. It will work great in your car in Georgia year-round. Yes, its fine. Compatibility of 5w30 and 10w30. So, Can you mix 5w30 and 10w30? Yes, you can mix 5w30 and 10w30 oil. In general, mixing 5w20 and 5w30 will not damage your engine. C. 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. Best to change as soon as you can. That's for cold starting in winter. Q. F-fan - As far as home brews go, 5W-30 with SAE 30HD should be a very practical mix. #5. However, many car drivers have been doing this act, and they seem to be okay. Make sure you use the same brand for both oils so that they blend properly. #7. In the 10w40 we have 30. 5w30 is used for light-duty engines while 10w30 is used for engines which carry heavier loads. This means that in most cases, they will perform quite similarly, especially in warm. 10W-30 isn’t any different at starting temperatures than 10W-40 – but at operating temperature, the environment isn’t going to have as profound an effect as if it were hot outside the vehicle. Running Cold. The answer is yes. For example: Valvoline Maxlife Synthetic. ") either of the Phillips Choice 5w20, 5w30 syn-blend oils sounds fine to me. Despite the fact that their densities differ, these two oils are quite similar. However, if you do use 10w30 in a 5w20 engine, it may lead to several negative effects on your car –. When the engine is excellent, 10w30 motor oil has a viscosity of 10w. May 19, 2009. The viscosities of these two. Even the oil mix of the synthetic and conventional blend will show you no harm to your engine. In my neck of the woods it's usually right in between both and I've used both, one or the other, for years when changing oil on these vehicles. If your running it day in and day out, I would use a HDEO 15w40, or 15w50. The answer is yes. This means that if you want to, then you can mix 0w20 oil to 0w30 oil. 6 and 9. 5w30 and 10w30 engine oils have close. 10W-30 Engine Oil to find out which one is best for you. Canada. At best, if you mix say a 10W40 and a 0W20, you will get a 10W30 at 50/50 ratio. But as the engine heats up, the 5W-20. Basically 5W30. But, it doesn’t pose any harm to your engine. either 50:50 or even 3:1 for a 5w27. I have never ever seen an owners manual that recommendeds. This means that this motor oil is less dangerous when below freezing. So for the question, the answer is yes. Yes, you can add 0w20 oil to 5w30 oil. #5. Using two different oil weights in the same engine is perfectly acceptable in any of these situations. In fact, race teams that use Mobil 1 regularly mix 10W-30 with 15W-50 to achieve the desired blend for the particular temps and race duration. Typically a mix of synthetic and conventional base oils. 10w-30 and 15w-50 4 qt's of 10w 30 1 qt 15w-50 so 10x4=40 plus 15=55 divided by 5=11W 30x4=120 plus 50=170 divided by 5=34 so your new oil wt. By using 10w30 instead of SAE 30 during cold temperatures, there will be less wear on the. In a 5w30 engine, you can add 10w40 oil without seeing any major negative impact. However, because it is thinner it. The engine might be on its way out because of lack of oil. 20W40 oils on the other hand work better at a bit higher temperature. In addition, Shell Lubricants has introduced Shell Rotella ® T6 10W-30 full synthetic heavy duty engine oil, which provides the benefits of a full synthetic engine oil in the. driving round and round I go, where I stop I do not know. Before you rush out to buy two different types to mix, we’re going to explain when doing this is a good idea and when it’s best avoided. It is recommended for use at -13°F up to 95°F / -25°C up to +35°C (outside temperature). That means mixing single grade type of oils with their single grad counterparts. mix 5W30 and 10W30. The upside of synthetics is they handle heat much better. Therefore, 5W-30 is better suited for hot. Re: Can I mix Mobil1 5W-30 with Mobil1 10W-30? (kaitsu) As an engineer I can say absolutely yes, yes you can. The short answer is: Yes, you can mix the two oils. 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. The 10W30 motor oil numbers are the viscosity at cold and hot operating temperatures. I was told that this was a bad idea and it shouldn't be done. 5w30 and 10w30 motor oils have a similar viscosity, so mixing them is not harmful. 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. 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. Conclusion . i. But in winter, it becomes difficult to run a snowblower in ice with 10w30. Can you mix 5W-30 and 10w40? Yes, it is perfectly safe for you to mix 5W-30 and 10W-30 engine oils. But he has some 10W-30 in his garage, so he uses it to change the oil. #7. If your car is not capable of handling the cold thickness of 10W30, then it should not be mixed. These oil grades have similar characteristics, with the main. It will not damage your. If you’re wondering whether you can mix synthetic oil with regular oil, the answer is yes. The answer is that ANY one can be used regardless of the vehicle owners manual recommendation. This enables the 5w20 motor oil to reach engine parts quicker and create less drag that reduces fuel economy. Yes, it won’t hurt their car engines, but it’s not a recommended practice. Both the oils have the same viscosity (5W) though the viscosity index is different. There are a few potential downsides to mixing 10w30 and 5w30 oils: The resulting oil viscosity may be too thin or too thick for your engine. In winter weather the 0W oil will flow like a 0W oil, and the 5W will flow like. The other number is the weight of the oil and can’t be mixed. Yes, you can use 10w30 instead of 5w30 engine oil. This comes from people who own these cars not a computer telling a guy at a store. If the engine is used a little bit around the house, any 5w30 full synthetic or 10w30 will do. Myself I'm in SoCal and doing desert trips to AZ so I use M1 0w-40. Motor oils can be different from how thick or thin they are. 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. T. Mixing 10w30 and 15w40 motor oils is generally acceptable but not recommended unless it’s in an emergency. This article is a must-read for those who want to fully comprehend the implications of switching between these two oil types. Manufacturers designed these oils to protect the engine while warming up. I'm about to do a super frankenblend in my moms car to use up my leftovers. The 10w30. If they originally recommended 5W-30, your mixture will not pump as well at very cold temperatures. 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. Say we add a quart of 5w30 to 2 quarts of straight 30 weight. 3 to get the second number. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them. Both oils are 30 viscosity at operating temperature. Even the oil mix of the synthetic and conventional blend will show you no harm to your engine. If the engine is used a little bit around the house, any 5w30 full synthetic or 10w30 will do. First, mixing motor oil grades can create an oil pressure decrease as the engine revs higher. and just buy this quality oil in bulk at a low price. At operating temperature 5w30 and 10w30 are the same and can be mixed. Additionally, the mixture of 5w30 and 10w30 could lead to various issues. However, do not mix different grades of oil together. And windchill only affects skin. It slightly reduces fuel efficiency. Yes, you can mix 5w30 and 10w40. The 5W-30's are in the 10's. Plus, both of them have the same viscosity at temperatures. If you buy the engine oil and find it rated 10w30 or 5w20, you can rely on them. As mentioned, a lot of car drivers are already doing the mixing of both these oils. winters as cold as -20F. Can you mix 5W-30 with 10W-30? In general, it is not recommended to mix 5W-30 and 10W-30 motor oils. It gets really interesting when adding multiweight to straight weight. The only difference between the two oils is the low temperature point, with the 5W-30 functioning slightly better than the 10W-30. 4°C) and down to -10°F (-23°C), use 10W-30. #2. Sure you can, as long as either viscosity is suitable for your engine. O. The net effect of adding 1/2 or 1 gt of anything in your 4. The RX350 uses the 2GR-FE engine (the 3. Or this. 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. Not only does this in-depth 10w30 vs 5w30 guide. I'd buy all the 10W-30 I could, after getting the 5W-20. I'd probably stick to Royal. The same brands would mean that they are compatible in terms of their additives. Thanks to their close viscosity, mixing the two oils will have no damaging effect on the engine. Can I Mix 10w-30 and 5w-30? A lot of drivers mix motor oils of similar viscosities. If you are not in a situation where low-temperature startup anti-wear protection is not critical to you, then using 10w30 oil can be fine as well. The answer is yes; you can mix 5w20 and 10w30 oil. A one-time oil top-up with a different oil isn’t a problem. It gets really interesting when adding multiweight to straight weight. Older engines can use the SAE30, while the 10W30 is for modern engines. Better In Cold Weather. For the 5w20 motor oil, the twenty indicates that the motor oil has a low viscosity and is also thinner in high temperatures. Motor oil of 0W20 grade is supposed to be kind of like 5W20, but with better cold start performance in winter in colder climates. It is best to use the same manufacturer and stay consistent with it. You may notice that ISO 46 can replace both 15W and 20W SAE oils. Can I mix 5w20 and 10w30? It should be fine , considering the temps, and that the suggested oil viscosity is usually 5W-30, so two quarts of 5W-20 and three of 10W-30 probably come pretty close. But you should remember that it is not recommended. regular oil and advising whether mixing motor oil is okay. Winter-grade oil stays thin even as temperatures drop, which means it will flow straight to the engine at. Your car manufacturer’s recommendation notwithstanding, mixing 5W20 and 10W30 won’t cause any harm to your engine. If you add 5W20 to 5W30, the result is an intermediate viscosity, which may not flow easily as the original oil. Is it possible to mix 5w30 and 30w oil? You are correct that adding 1 liter of SAE 30 to 3 liters of SAE 5w30 permanently increases the viscosity of 5w30. Its not like you can take a quart of 5w-30 and a 10w-40 and end up with 7. In the 10w40 we have 30. However, there are potential risks involved. 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. The 5w30 has more viscosity index improvers vs the 10w30 so technically the 10w30 would have more oil that lubricates the engine. While they are both multi-grade oils that protect and lubricate the engine, they have varying properties. It calls for 5W-30 motor oil. At operating temperatures, both oils will have the same viscosity (30) and will flow and protect identically. Location. It may be a 15W or 20W. The engine will not work correctly, and if you use the mixture for a long time, the engine will be significantly damaged. 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. Obviously, a 10W-40 is thicker than a 10W-30 at high temperature. They have similar ingredients other than the viscosity level. Both have the same viscosity at higher temperatures, but 5W30 is slightly thinner than 10W30 at cold temperatures. Yes, you can make use 10W30 engine oil instead of the SAE30 in your Lawn Mower. Below 40°F (4. Can I Mix 5w-20 Oil and 5w-30 Oil? The short answer to this is yes. So a lot of drivers are already doing it. This motor oil has a low viscosity, and this motor oil can also be used as a replacement for a 5w30 motor or 10w30 motor oil. But only when both of them are at operating temperature. 5 qts M1 15W50 plus 8 oz VSOT, the spec oil is M1 0W40 but my engine is most quiet with thinner oil. This blog post will clarify the confusion and explain the difference between these two. In addition, the different viscosities can cause the oil to sludge, clogging up your. 5)/2 = 9. They’ll mix seamlessly. Both engine oils provide the same flow and performance in cooler temperatures. Before making a decision, it is important to know the technical specifications of every oil type. #8. 10w. Goes beyond CK-4 wear limits, delivering an average of 37% better than the maximum wear requirements. “5w20” means the oil weight in cold temperatures is “5,” and in high temperatures, the weight is “20. The main difference between SAE 30 and 10w30 is that 10w30 is a multigrade oil while SAE 30 is a single-grade oil. The viscosity affects the thickness of the oil. This is because both 5w30 motor oil and 10w30 motor oil will have the same viscosity in operating temperatures. Hi, I was curious as to the % of synthetic oil in the Castrol synthetic blend oils. #4. The engine is the 1999 5. 1 post · Joined 2017. Germantown TN 38138. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Jan 30, 2015.