Is Synthetic Motor Oil Better For Your Car?
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Is synthetic motor oil better than conventional oil? Synthetic Motor Oil Myths - https://youtu.be/Se8-W7rK0H4 Thank you to Pennzoil for bringing me out to the 2016 Canadian GP and sponsoring this video! This video has been compensated by GarageMonkey and its advertiser. All opinions are mine alone. Subscribe for new videos every Wednesday! - https://goo.gl/VZstk7 The viscosity of an oil is its resistance to flow. A greater viscosity means more resistance to flow, or a thicker oil. A lower viscosity means a thinner oil. Before understanding the benefits of synthetic motor oils, like this Pennzoil Platinum derived from natural gas, we first need to understand the rating system used for motor oils. You’ll often hear 5W-30, or 0W-20 as ratings used in cars today. These are multi-grade viscosity oils, meaning their viscosity grade changes with temperature. The first number, followed by a W, is the cold rating (W stands for Winter), and this means the oil behaves like an SAE 5 grade motor oil (using 5W-30 as the example) while cold, but at operating temperature, at about 100 degrees C, it operates like an SAE 30 grade motor oil. Now 30 is higher than 5, so initially it may seem that the oil would get thicker at higher temperatures, which is obviously not the case. A straight SAE 30 grade oil will be thicker at lower temperatures, as will a 5 grade oil. Even though a 30 weight oil is thicker than a 5 weight oil, at 100C the 30 weight will be thinner than a cold 5 grade oil. Low viscosity at low temperatures is important, because this is where a significant amount of engine wear occurs, so it’s critical to maximize oil flow to protect the engine. At colder temperatures, thinner oils will flow better and thus offer better protection. For a conventional oil, for example while creating a 5W-30 oil, you’ll start with a base oil similar to an SAE grade 5 motor oil, and include additives to alter the viscosity rating. To improve low temperature flow, pour point depressants (PPDs) are added. To increase the viscosity at high temperatures, viscosity index improvers (VIIs) are added. VI improvers are polymers which expand in heat, making it more difficult for flow, thus increasing the viscosity. Synthetic oils, however, can have base oils which are already formulated as a multi-grade oil, meaning you don’t necessarily need additives, or as much additives, to alter the viscosity at different temperatures. The major benefit here is that additives tend to break down over time, so synthetic oils will maintain their original viscosity properties much better throughout the engine oil drain interval versus conventional oils. (Diagram illustrating viscosity vs temperature) If you were to plot two 5W-30 motor oils, one conventional and one synthetic, at the beginning of the oil change interval, they would have similar viscosity properties. At the end of the interval, however, the synthetic would act nearly identical to the original oil, while the conventional oil would be thicker at low temps, and thinner at high temps. Now does this mean that with synthetic motor oils you can extend your engine oil drain interval? No! It just means your engine is better protected throughout the engine oil drain interval. There are still additives (anti-wear, dispersants, anti-foam, detergents, rust inhibitors, corrosion inhibitors) which wear out over time, so you should always change at whatever interval your owners manual suggests. And don't forget to check out my other pages below! Facebook: http://www.facebook.com/engineeringexplained Official Website: http://www.howdoesacarwork.com Twitter: http://www.twitter.com/jasonfenske13 Instagram: http://www.instagram.com/engineeringexplained Car Throttle: https://www.carthrottle.com/user/engineeringexplained EE Extra: https://www.youtube.com/channel/UCsrY4q8xGPJQbQ8HPQZn6iA NEW VIDEO EVERY WEDNESDAY!
Comments
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mine Celica 2.0gti has 10W40 recommended,it's semi-synthetic.
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I live in california, so there's no reason why my oil would be -35 freedom units
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I used AMSOIL in a 1985 Plymouth Colt which was advertised to be a 25,000 synthetic. As recommended I changed the Hastings filter at 12,500 miles which forced the addition of a quart of oil but at 18,000 miles got paranoid about the effectiveness of the oil at that mileage. I got a kit from Faber Labs in Chicago and sent in a sample of the AMSOIL with 18,000 miles on it and changed the oil. The analysis showed no unusual engine wear and that the oil was still good with no excessive contaminant buildup or viscosity change. This car with a 1.5 liter 4 cylinder and with AMSOIL 10W40 in the engine and 75W90 in the 4 speed manual gearbox was getting an average of 45 mpg in the city and 50 mpg on the highway, EPA rating was 37-44 mpg city-highway. The shifting was vastly improved especially in Illinois winters. I have not had the same mileage increase experience with Mobil One or Penzoil synthetic in subsequent vehicles. The switch over to AMSOIL added 5% mpg each with the engine oil and transmission lubricant change and beat the daylights out of the EPA ratings..
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10/40 semie synthetic goes in everything that's all u need to no in life lol
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I really enjoyed that!! Thank you
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I drive a vehicle that has direct injection,is there any advantage to using a full synthetic in relation to the carbon buildup problems encountered with these engines as they age.Alot of people experience carbon buildup on the valves,supposedly from the pcv system.Would running synthetic help prevent this problem?
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What is Titanium FST in Castrol Edge full synthetic oil?
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I recently switched from Synthetic Blend to Pennzoil Platinum Full Synthetic and holy crap. I had this drone in my Challenger from deleting my rear resonators, and it was unpleasant at highway speeds, but I always have my music on so no problem for me, but....After Switching to Pennzoil Platinum Synthetic, the Drone has been significantly reduced, and the engine is also quieter and smoother than before. I'd say an 30% Reduction in highway drone. It's still there, but nothing that will make long trips uncomfortable. I probably will never use Conventional oil ever again!
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so i put 15w40 on my 2.0vw but on highway with hot car i got a low oil pressure light, manual recommends 5w40, should I change oil? 15w or 5w had not effect as this is the cold viscosity right?
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What oil would you use for your teggy? And what would you use if it has over 270,000 km in mileage and is undercompressed and in need of a rebuild??
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Great demonstration thankyou
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I love you so much
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What about Gear oil
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I found that banana peel is super slippery, so I'm scraping off all the white stuff and using that - takes a while to produce 3 L but it's really worth it. Quick cold starts here in winther, engine noise decreased by 70%, mpg increased by 20%
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I only use the most crappy and cheapest oil on my crappy and cheap motorbike.
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love this video, just dont love Pennzoil that much. But since they helped put out this info I can deal with that :p
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What!
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My car takes 0W5. When I first saw this, I was like "WTF?"
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great work mate, really detailed information. keep it up.
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The manual for my car says to use 10W-40, but Ive found using WD-40 instead runs better at start up
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