Example, 5/20 refers to the viscosity of oil at different temperatures. At cold temperatures, below freezing, the "viscosity" of the oil is "5" weight, meaning it is thinner and will flow easier. At higher temperatures, the oil is "20" weight meaning it is a little thicker to provide adequate lubrication. Lower viscosity oils may provide better fuel economy since being thinner will allow it to flow more easily. Refer to your owners manual for the proper viscosity of oil for you particular car/truck.
It is the weight of the multi-vicosity oil. The 10 is the weight of the oil when cold. The W stands for Winter. The 40 is the weight of the oil when it gets hot.
"winter" The oil will act like 15 weight oil in cold weather and 40 weight oil in warm weather.
The oil behaves like 5 weight when cold (5W) and 30 weight when warm (30)
If you mean engine oil, then 5 quarts (usually 5 bottles) of 5w-30 weight oil.
If the car does not smoke badly this may mean you are using the wrong weight motor oil. Use the proper weight oil that a dealer will recommend.
If you mean 5w20 synthetic the answer is NO. Pontiac recommends SAE 10w30 weight oil in Synthetic or Conventional. Use exactly that weight.
If you mean a different weight then you're not very wise. Use the exact weight oil that Honda recommends. If you are referring to the brand of oil, you do not have to use Honda oil. In fact Honda does not even make oil their oil is refined by another company. You can use any major brand oil of your choice, as long as it is the correct weight.
It they are the same weight oil as in SAE 30 weight oil there is no difference and they are identical. 30 weight oil is 30 weight oil synthetic or conventional.
Read your owners manual to see what type of oil weight you need. By weight I mean 10w30, 5w30 etc. Your manual should also tell you what type of filter to buy too.
weight of oil is lighter than water
What do you mean by newer oil? If you are talking about the weight of the oil, use exactly what the owner's manual states. If it says use 5w30, then use 5w30. If you are referring to synthetic oil, yes you can use synthetic as long as you use the correct weight.
iF YOU ARE REFERING TO OIL FOR A VEHICLE IT REFERS TO THE DENSITY OR WEIGHT OF THE OIL. AS AN EXAMPLE YOU CAN BUY 10W-30. nOT SURE IF THIS IS WHAT YOU ARE ASKING IF NOT GIVE A LITTLE MORE INFO.