Heat Ratings. The output of a radiator is measured in British Thermal Units (BTU.s) per hour. (So is air-conditioning, come to that!) 3000 BTU is roughly equivalent to a 1 kilowatt bar heater, just to give you some idea.
Rating Newest Oldest. Best Answer: The difference between 5w30 and 10w30 is that 5w30 flows better at colder temperature. If you live in a place where it gets cold often, or during the winter time, you will get better results using 5w30.Otherwise 10w30 oil is good enough, i usually use 5w30 all year round.ating Newest Oldest. Best Answer: The difference between 5w30 and 10w30 is that 5w30 flows better at colder temperature. If you live in a place where it gets cold often, or during the winter time, you will get better results using 5w30.
Rating Newest Oldest. Best Answer: If you go to the: mobiloil.com you'll find the specific difference between 5W-20 and 5W-30 including regular and full synthetic oil. Click on the product data sheet for any of their products and compare the numbers. corresponds to the weight of the oil at operating temperature. 20 (or 30) corresponds to the weight of the oil when cold. Viscosity of oil reduces as the temperature increases. Think butter. So 5W20 and 5W30 are the same when the engine has reached its operating maximum temperature.