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: The base viscosity of 10W-40 oil is indicated by the 10, so it is a thicker oil than the 5W-30. Both oils are rated for use in winter (the W), and the last number is their maximum cold-weather viscosity-again the 10W-40 is thicker, with a viscosity of 40 versus 30.ating Newest Oldest. Best Answer: The base viscosity of 10W-40 oil is indicated by the 10, so it is a thicker oil than the 5W-30. Both oils are rated for use in winter (the W), and the last number is their maximum cold-weather viscosity-again the 10W-40 is thicker, with a viscosity of 40 versus 30.