0
Basically the difference between the two is the ability for the oil to flow through a viscometer (scientific measuring device) at a temperature of 210 Degrees Fahrenheit in a predetermined amount of time in seconds.
Below you will see that an oil that is a 40 grade will flow through a viscometer at 210 Degrees Fahrenheit faster than 12.5 seconds but slower than 16.3 seconds. The same rule would apply for a 50 SAE Grade oil. See the chart below.
4012.5<16.35016.3<21.9
Now if you are trying to determine which oil would be best for your bike here is what I would recommend. If it is factory untouched bike I would recommend going with what the manufacturer calls for. If the bike has been modified extra horsepower, higher rpms, etc.. then you may want to consider an oil with more shear strength. In other words if the bike called for 20W40 and has been modified you may want to move up to a 20W50. One thing to keep in mind a 20W40 oil will be more fuel efficient than a 20W50 oil. Something that when protecting expensive performance equipment is not usually considered but I thought to bring it up. Fuel economy or a new engine! Be sure that whatever oil you purchase has the ability to retain the viscosity that it is rated for. Many oils will break down (shear) and lose viscosity. I.E. a 20W50 oil could easily break down to a 20W40 Oil Or Even a 30 SAE Grade Oil which would not do you any good.
Hope this helps :0)
What else can I help you with?
What is the proper oil weight for 1998 eclipse gst 20w40 is not available is 20w50 all right?
10w-30 is reccomended in the owners manual.
What type of motor oil for Buell blast?
Any motorcycle oil with the weight 20W50. I use Valvoline 4 stroke motorcycle oil 20W50 and it works fine!
What weight oil does a Honda 250 rebel motorcycle take?
20w50 motorcycle oil, any brand.
What type oil is best for motorcycle?
Any high grade 20w50
Viscosity of lube oil?
They can range greatly from 5W30 to 10W30 to 20W40 to 20W50, depending on the application, engine type, driving conditions. Best to check OEM specs
What is the engine oil capacity for a Kawasaki KZ 550 LTD?
3 litres, 0.79 US Gallons, 6.3 US Pints SAE 10W40, 10W50, 20W40, or 20W50
What type of oil should you put in your harley Davidson sportster 883?
20w50 motorcycle oil
What oil do you put in a 1995 1200 sporster?
either 10/40 motorcycle oil or 20w50
Could you use a 20w50 motor oil for a Hyundai Accent 2002 in Israel?
yes read your owners manual hotter the thicker the oili use 10w40 and 50 check with your mechanic on 20w40 and 50
If you have a 1998 Kawasaki vulcan 800 what oil should you use?
According to the Kawasaki site you should use SE class SAE 10W40, 10W50, 20W40 or 20W50 oil for the engine. You use SAE 10W oil for the front fork.
What kind of oil goes in a yamaha wolverine?
10W40 motorcycle and ATV oil for a stock motor, you can use 20W50 if you are running competition or it's REALLY hot where you live. Don't run 20W50 in a cooler climate, it's too thick. Also, don't use automotive engine oil, the clutches and the transmission need the proper additives found in motorcycle oil to work correctly
10w-30 oil is ok for a 2002 galant 4-cylinder?
Affirmtive. 10w30 is fine for temps of 40-80*f. Below 40*,i'd go to a 10w20 or a 5w20. 0* and below i'd use 5w10. Over 80* i'd use 20w40 or 20w50.
