That's a very broad question, more information would be helpful. But in most cases, the normal recommendation is 10w30 for the summer, and 5w30 for the winter. But other factors and driving conditions may call for something else, driving habits may change your requirements, and the specific engine may require something else. But don't just go by the manufacturer's recommendation, they usually recommend whatever weight will give the best fuel economy (this is the result of the EPA sticking it's nose where it doesn't belong). This may not always be the best choice for engine longevity. Your best bet would be to call a mechanic, they can probably made an educated suggestion. Or, if it's a car that's been around awhile (even if it's brand new, if the engine has been in production for a few years, this will work), check out a Hayne's manual or Chilton's manual, they'll have the best recommendation for oil in there.
A US gallon of 90 weight oil weighs approximately 6.8 pounds. An Imperial gallon of 90 weight oil weigh approximately 8 pounds.
You should weight about 40-45kg
The weight of a car or motorbike when petrol, oil and other fluids are taken into account.
5W-30
The oil should be greater than 100M Ohms resistance. If a flash over occurs within the transformer the oil has to be replaced
5W30 weight only. Gastroll GTX and Kendell brands are a real good oil to use.
5W30 weight only. If you run any heavier oil in that engine it will burn the valve train up.
Look at your oil cap. The weight is on the cap.
The answer to this depends on what kind of oil you are talking about. If you put a heavier weight oil (like 5 weight) in your car instead of say,30 weight, it will cause your car to act sluggish in the cold weather because the oil is thicker. If you put a lighter weight (30 weight ) in a vehicle that needs a heavier oil, the car will still run but not as well as using the correct type of oil. If you put transmission oil in your car's engine oil pan by mistake; you should empty out the oil pan immediately (when the oil and car are cold) and flush it or refill it with the correct oil as soon as you have realized it was the wrong oil.
5-30 weight SM rated oil.
You should use 5W30. That is the recommended weight.
If the 2000 Nissan Frontier has fewer miles on it, it is recommended that the oil weight should be 5w30. If the car is more miles on it, the recommended oil weight should be 10w30.
look in your owners manual and see what weight oil they recommend and then get that weight oil in the synthetic oil that you like.
10w-30 is the most common. If you can, use a synthetic. It will pay off in the long run if you plan on keeping it .
80/85 weight
You must use the manufacturer's recommended weight. Diesels run hotter than automobile engines so you may need a heavier oil. Read your owner's manual. Also at the oil intake, it should list the type of oil needed. It is the weight of the oil that is important. If it requires 20W-40, do not put in 5W-20.
what oil viscosity should i use a gsx 1400