mixing engine oil weights

This is a practical method to improve oil pressure in an older, high-mileage engine. Make sure you are mixing like weights,ie 10W-30 with 10W-30, etc. OHV engines generally use 10W30 and L-head engines use 30W. Yes. Parts are just part of what we do. Im pretty sure his car calls for 5W30 like my nissan. small-engine oil that is a mix of oil and fuel works in two-stroke engines, and straight . The main difference between regular and synthetic oil is the temperature at which it undergoes thermal degradation. Yes, you can safely mix one brand of oil (e.g. CAN YOU SWITCH BACK AND FORTH BETWEEN MOTOR OILS. To predict the mixing viscosity (blend) of two liquids or base oils: 1- Enter viscosity of the first base oil. The viscosity of hot oil is measured using different test parameters than when the oil is cold, so the numbers after the "W" don't relate to the numbers in . Taking it to real world oil numbers from the manufacturer's own sites, the Pennzoil Platinum 5w-30 I recommended has a 9.8 cSt value at 100C. The 5w30 is better because it thickens less when . AMSOIL) or conventional oil with synthetic oil (in fact, that's what a synthetic blend is). Re: Best Engine oil weight recommendations for 440? The 15W40 weight is widely available. posted by zorro astor to Travel & Transportation (11 answers total) You can mix different grades of oil with no bad effects. Correspondingly, can I mix 0w30 and 5w30 oil? Viscosity is formulated into the synthetic, but there's no problem mixing. It is premium quality non-ash forming two-stroke motor oil. That's barely within the grade and very close to a 20 wt oil which must have a value of less than 9.3. Some oil is better than no oil. Though the synthetic oils from different companies are not chemically identical, the oils can be mixed together. In order to help set things straight, we've addressed and debunked a lot of the common motor oil myths. Oil is like pancake syrup. Vegetable and corn oils are both denser than olive or coconut oil. For example, mixing 2qts of 10w-30 conventional with 2qts of 5w-30 synthetic will give you something similar to a 7w-30 semi-synthetic. At least thats what Mobil 1 says, a crate engine costs $16,xxx+ there's no point is risking it for $15 worth of oil. Mixing oils I have read articles and seen videos that say mixing synthetics with other synthetics and even non-synthetic oil is OK. Would not do this during warranty period. Mixing a litte inbetween an oilchange wont do any harm. 2- Enter viscosity of the second base oil. Vegetable oil and corn oil both weigh about 8 pounds per gallon. I asked him why he's mixing, says that he got some clearance quarts on sale. I just buy the 4qt jug of 10w30 and top it off with 10w40 or 20w50 (for my Land Cruiser) - whatever's nearby when I'm changing the oil. My wife's car runs 10w30 and takes 4.5qts. This will not cause any negative impact, such as chemical reaction the crankcase, foaming, bubbling. Mixing motor oils is not bad for your engine but you need to follow some simple rules and be careful and observant until the next oil change. Just do not use this oil in very cold weather, unless you have a block heater on your engine, or park inside. Viscosity measurements must be at the same temperature for both oils. Can you mix motor oils for gasoline and diesel engines? In most cases, 75W-140 gear lube is too thick to be used in place of 75W-90. In a high-performance engine, regular oil is more apt to pick up deposits and form sludge. The quick answer to this question is yes, you can mix different engine oil viscosities, but you have to consider certain factors when you do. My understanding is that you do not mix straight weights and multi-grade oil. It's a mix of PP 5w-20, Syntec 5w-20, M1 5w-20, Pennz YB 5w-20, SynPower 5w-30, M1 0w-30, GC 0w-30, Chevron Supreme 20w-50 and Formula Shell 20w-50. just don't mix synthetic with dino oil. One cup of vegetable oil weighs 7.69 ounces or 0.48 pounds. It won't damage the engine if you change the oil again quickly. Considering this, is it OK to mix synthetic gear oil with regular gear oil? Doesn't look or feel big. Shop for Sta-Mix Engine Oil 2 Stroke 40:1 Ratio 3.2oz with confidence at AutoZone.com. It's not all the same. what this means is that the oil industry scientists, in their labs, have created lubricants that flow better at low temperatures than . Now, as far as different grades are concerned, mixing between them isn't something that will damage your engine either. 3- Select the temperature for the viscosity measurements. Dec 14, 2012 (Edited by Moderator) Re: Yet another oil question. ISO 100 mineral hydraulic oil would be equivalent to SAE 30 motor oil and ISO. There is much more to know about mixing 5w30 and 10w30 oil. This is purposely done to allow modern engines to use lower-viscosity motor oil, like 0W-20 and even 0W-16. At operating temperature 5w30 and 10w30 are the same and can be mixed. Engines that run high operating oil temperatures require higher viscosity oil. The mixing of different types of motor oil can lead to a decrease in efficiency and a reduction in engine performance if you mix them. 03-24-2015 10:55 AM #13. When oil is cold it becomes thick and may not move freely within the engine, and when it is hot it may become too thin to offer protection from friction. Today we are talking about some engine oil myths. Outboard engines, leaf blowers, weed trimmers and other equipment with small engines often have a 2-cycle, also known as 2-stroke, engine. All modern engine oils can be mixed whether if it's fully synthetic, semi-synthetic, or mineral. There are unique additives for each oil and sometimes they don't play well together when mixed. First some background. This will be ok for the short term, like others have mentioned. Oil-coolant mixing on my KTM Duke 790. Using a heavier weight oil can cause a check engine light on engines equipped with variable valve timing. The first number in an oil, like the 5 in 5w30 is the oil's viscocity in Winter, or on a cold start. posted by Kirth Gerson at 8:52 AM on April 17, 2006. The weight in motor oil describes the viscosity of the oil at certain temperatures. Vegetable and corn oil have a denser consistency so they weigh more than some of the other oil varieties. Oil consumption is a very important engine health trend to monitor. Lubricating oil can cause a lot of friction among piston engine aircraft owners. Some oil is better than no oil. This is accomplished through the inclusion of unique additives in the mixture. 1. #3. You can mix Synthetic and Mineral oils too, if you want. Just doing a quick search brings up several quality brands that meet this BMW Longlife 01 specification and can be purchased online*. Never, Never, Never combine oils. all have these grades. Yes. Engines are Built to Use a Certain Viscosity of Motor Oil. I have a 3 gallon Dispos-Oil container where I put my oil leftovers. The good news is that mixing different types of oil it will not harm your engine in any way in the short run. For the best marine oil for 2-stroke engines, we'd recommend the Lucas Oil Semi-Synthetic 2-Cycle Oil for consideration. If it has an engine, you can bet that Lucas has an oil for it. On the thicker side, Castrol 0w-30 posts specs on their site showing a 12.3 cSt value. Then they may use a 10W-30 or SAE 30 motor oil. w: this stands for "winter," and is part of the "5" rating. Most synthetics today are fully compatible with conventional oils and can safely be mixed. For modified or non-stock differentials where a higher viscosity gear lube may be desired, AMSOIL typically recommends 75W-110. While H-D supply their own oil, you definitely don't have to use it to ensure your Harley runs smoothly.The chart below shows you the recommended engine oil and the amount of oil you need for each model.The chances are, your recommended oil will be 20W50 as that's the most common grade for Harleys. Click to see full answer. That converts into 0.22 kilograms and 218.00 grams. You can mix straight weights like SAE 10 and SAE 30 or multi-grades like 10W30 and 10W40. Remember, when getting an oil change, 15 to 20% of the old oil remains in the engine and mixes w. 5W30 and 10W30 are very close in viscosity. Choosing the right oil type and oil change interval is the most prudent choice, as recommended by your car's manufacturer, and getting the service at an affordable price is the best option. It is correct to say 20 weight oil for 20; 5W shall be called 5 weight winter-grade oil. The pulse rate is calculated by the vehicle's ECM based on the assumption that you've used the recommended oil viscosity. First off, a reader asks: I'm looking for an engine oil for my drag race car engine from your Dominator series. Manufacturers recommend oil weights based on ridiculous amounts of engineering, not 'ALL OUT' racing. They can't be mixed during low temperatures. 5. The difference between a 0W-30 and a 10W-30 is indicated by how well each flows at lower temperatures. With that said they all need to meet the needed spec, and only add synth to conventional oil. The base oil type (synthetic or mineral) is also critical. Carmakers use pulsed oil pressure to operate variable valve timing mechanisms (VVT). the weights are neraly identical. He does a very very infrequent oil change (15K-20K OCI on dino), so its always an interesting time. So, can you mix 5W30 and 5W40 oil? Synthetic oil also contains additives intended to help keep an engine cleaner and protect it from damage. On paper, pretty much the perfect bike for my needs. Various car engine oil manufacturers have assured their customers that it is definitely safe to mix different weights of oil. Lucas is one of the biggest names in the lubrication game. However keep in mind that mixing viscosity of oils is not really recommended and it shouldn't be your usual practice. Get yours online today and pick up in store. Synthetic motor oil is a substitute for conventional motor oil. SAE 30 is a single-grade, or straight weight, oil with a viscosity rating of 30 and is safe for small, . All of them are perfectly acceptable . Whether or not changing engine oil brands between oil changes can be harmful to your oil and engine. The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine . The 0W is for cold weather and economy, the 5W is a end of winter/spring weight. There's no way to mesh the two together without refinement or chemical alteration. 0W-40 The 0W-40 oil is engineered to behave as a 0 weight oil at the starting temperature and a 40 weight oil when the engine will reach its normal operating temperature. You can mix other grades but not other oil brands/blends. For two-stroke marine oils, you should start your search by checking out what Lucas Oil has to offer. 5: this is the oil's viscosity rating at low or winter temperatures. Answer (1 of 4): There is nothing wrong with mixing oils of two different viscosities, but it is not the optimum condition. But the bigger number is the hot temp viscosity, and you usually do not want to go thinner. As long as you run oil designed for gas engines as close as it was called for( with a high zinc#) you will be fine. Also to know, can you substitute 10w 30 for 5w30? This is a clear indication that synthetic and regular mineral gear oils can be mixed. Run your straight 30 during the summer if you want to. Will topping off with a different brand, weight, or type harm the engine? If the engine has a single fill port for both engine oil and gas, it is a 2-cycle engine that requires a specific mix of oil and gas to function properly. Choosing the right oil type and oil change interval is the most prudent choice, as recommended by your car's manufacturer, and getting the service at an affordable price is the best option. I mixed 10 different motor oils, conventional, synthetic, various viscosities, racing oil, oil with an ester base, oil designed for a diesel engine, then use. Mixing viscosities doesn't matter- your final "weight" is the average of whatever you add. Last edited: Apr 15, 2012. harley@16, Apr 15, 2012. This guide is designed to help you find the best oil for your Harley. Nothing prevents you from mixing weights, just check your oil level before starting. Do not, however, mix synthetic and normal oils (unless the synthetic's manufacturer specifically says it's OK). Most car engines have a pair of pumps, one for drawing oil through the engine and another for drawing air into the combustion chamber. Today's advanced engines are built with much tighter tolerances than their predecessors. But only when both of them are at operating temperature. However, once warmed up to 210 degrees F, it functions as a 30 weight oil. So, if you're in a bind, go for it. Super light, blends in, huge ground . Most of the Indian car manufacturers recommend this. The lubricant oil is used to power the engines, and we all know that an engine can't go on without using oil. Two-stroke oil (also referred to as two-cycle oil, 2-cycle oil, 2T oil, or 2-stroke oil) is a special type of motor oil intended for use in crankcase compression two-stroke engines. After having dreamt of owning a big bike pretty much all my life, things finally came together for me in March 2020. Go to any truck stop and you will find a gasoline/diesel mixed fleet oil that meets your needs. The only time the 5W-30 oil is "thin" is at cold start up conditions where you need it to be "thin." So how do they get a motor oil to flow in the cold when it is a thicker viscosity at 210° F? Your right, i paid 17300 for a brand new crate motor through audi. Don't even use the same viscosity oil from different manufacturers. For lower temperatures it lists straight 20 wt, along with 10W20, 10W30, 10W40. The service manual has a long list of oils, from 10W30 up through 20W50, including straight 30 weight and 40 weight. Dispos-Oil container where i put my oil leftovers does mixing engine oil 5w-30w with 10w-40w and can be.... 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