Asked by: Petrana Bruquetas
business and finance gasoline prices

Which is better 20w40 or 20w50?

Last Updated: 1st April, 2021

The well known fact is that viscosity changes withtemperature. Synthetic multi grade oil 20W40 basically willthin out more at high temperatures than the 20W50oil(definitely not at 40 degree C).

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Likewise, people ask, can I use 20w40 instead of 20w50?

20W50 will hold on to the viscosity marginallybetter than 20W40 when the engine gets hot. However,20W50 mineral oil will cause more sludge than asimilar 20W40 because 20W50 will have more viscosityimprovers. Pulsar 150's manual recommends 20W40, but youcan use either, not much of a difference.

which is better 10w30 or 20w40? 20w40 is thicker at high temperatures (normaloperating condition of engine) compared to 10w30.For properlubrication at operating temperatures high viscosity is desirable.So 20w40 will be good compared to 10w30 at normaloperating conditions. And at low temperatures 20w40 isthicker as compared to 10w30.

Likewise, people ask, which is better 10w40 or 20w50?

The smaller number, (the 20 part of 20w-50) describeshow the oil behaves at 40 deg C and a 20w at 40 deg C is about 10times thicker than your engine wants. A 10w-40 is better ataround 6 times thicker and a 0w-40 is much better at about 4times thicker.

Which is better 15w40 or 20w40?

Only the weight of the oil, 20W40 is thicker thanthe 15W40, 20W40 is the best oil for the oldcars although 15W40 is very easier cold start

Related Question Answers

Deisy Costel


What is 20w 50 oil?

The numbers 20W50 refer to the viscosity of themotor oil, set by the Society of American Engineers. Thisrefers to its fluidity or thickness. The "20W" indicates howquickly the engine will start when cold or in cold weather.20W50 motor oil is relatively viscous and thick. Mostmodern oils are 10W40 or even 5W40.

Lilica Rosenstern


What is 20w 40 oil?

20W40 is multi-grade oil and thereforehave the advantage of working in varied temperatures. The firstnumber “20” refers to the viscosity number ofoil when the engine is cold. The letter W indicates winterand at last the number “40” stands for theviscosity of oil when the engine is operating orhot.

Lashonda Pereles


Can you mix 20w50 with 10w40?

Re: 20w50 and 10w40 mix
The filter holds a good amount of oil, so yes,you will be mixing two different grades of oil whichcan lead to it congealing and cacking up all your oilways.

Athanasios Oterino


Is 20w40 thicker than 10w40?

The higher the grade the more viscous oil will be. Sofor 10W40 oil, when your engine is cool it will have a 10grade viscosity. Once your engine is hot, the oil will becomethicker (40 grade in viscosity). the W rating indicates thecold flow characteristics and the other number , the hi tempviscosity.

Patrycja Valmary


Which engine oil is best for ns200?

Motul is the best engine oil for pulsar 200 NS!Motul 7100 is a fully synthetic engine oil which providessmoother piston movements and a healthierengine.

Yanko Breunig


Which oil is best for Pulsar 150?

Among Valvoline 20w50, Castrol, Bajaj DTSi and Motul, Iwould recommend Motul anyday. But using fully synthetic oilbefore the break in period is not recommended.

Danka Mathissen


What is multi grade engine oil?

A multigrade oil is an oil that meets therequirements of multiple grades — one “W”grade and one single grade, e.g., 5W-30 or 15W-40,etc. This grading system has the advantage over the ISOsystem in that it defines the viscosity performance of theoil at both the low-temperature range and thehigh-temperature range.

Rakesh Lakhlifi


What do oil numbers mean 10w 40?

The lower the "W" number the better the oil'scold temperature performance. The 40 in a10W-40 simply means that the oil mustfall within certain viscosity limits at 100°C. Once again thelower the number, the thinner the oil: for example, a30 oil is thinner than a 40 oil at100°C.

Weimin Haussner


Will 20w50 increase oil pressure?

Yes thicker oils will increase oil pressure, butwill reduce engine horsepower. Excessive oil pressuremay explode the oil filter, damage seals, blow outoil passage plugs or even damage bearings. Rate the qualityof this post and help BobbyP reputation points.

Igancio Troekurov


Is Thicker oil better for older engines?

A: Yes. This is a practical method to improve oilpressure in an older, high-mileage engine. The slightlythicker oil film from the heavier base weightoil — 10W — can help protect worn enginebearings as well.

Taisiya Aranda


Can I use 20w50 oil in my lawn mower?

Can I use 20w50 motor engine oil in my lawnmower? The short answer is yes, you can use 20w50 oil ina lawnmower but results may vary. This kind of oil isnot designed specifically to be used in a lawnmower. Thethicker viscosity of 30 weight oil assists air-cooledengines to keep them running

Kadijatou Perrot


What oil is best for old engines?

Best Motor Oil For High Mileage Engines
  • Valvoline (VV150-6PK) MaxLife 10W-40 Higher Mileage MotorOil.
  • Pennzoil High Mileage Vehicle Oil.
  • Mobil 1 45000 5W-30 High Mileage Motor Oil.
  • Castrol 06470 GTX 20W-50 High Mileage Motor Oil.

Yvelisse Jivin


What is the 10 in 10w30?

For 10W-30 oil, the 30 is the same as the SAE 30viscosity rating for warm oil, but the 10W is the viscosity ratingfor cold oil, according to a standardized rating system developedby the SAE for winter oil use. And that's what the "W" stands for:"winter."

Almeta Quattrocchi


What is 15w 40 oil used for?

ADVANTAGE 15W-40 HEAVY DUTY DIESEL ENGINEOIL has excellent soot dispersancy and wear control whileproviding outstanding protection against wear and corrosion. Itssuperior formula reduces sludge, protects against varnish formationand has superior anti-oxidation characteristics and hightemperature stability.

Crisostoma Myachkov


What does 85w 140 mean?

SAE 90 gear oil in reply to BigTone, 06-02-201215:59:55. The 85W-140 is like the newer motor oilsand act pretty much the same way as they do as in when coldit acts like a 85W oil and when hot a 140W oil so it helpssome in theory that is.

Donnetta Adelantado


What does W mean in oil?

The "w" in motor oil stands for winter.The first number in the oil classification refers to a coldweather viscosity. The lower this number is, the lessviscous your oil will be at low temperatures. For example, a5W- motor oil will flow better at lower temperatures than a15W- motor oil.

Ynes Toenjes


Which oil is best for passion pro?

Which engine oil is best for passion pro bike? Forgetthe Yamalube oils and recommended oils first.

  • Castrol Activ 4T is the best recommended engine oil for passionpro.
  • Even Hero Moto corp also recommend s the same engine oil .
  • There are many other brand engine oils are their but most ofthem uses Castrol Activ 4T.

Xinhua Borremans


Which is the best engine oil for Splendor Plus?

castrol Power1 4T 1L Bike Engine Oil Hero Splendor Plus(10W-50)
  • castrol Power1 4T 1L Bike Engine Oil Hero Splendor Plus(10W-50)
  • by Castrol.
  • Available from these sellers.