Originally Posted By: Clevy
Originally Posted By: Rand
Originally Posted By: JimPghPA
What type of equipment is the engine on? If it is a generator then you could be using it in hot or cold weather and T6 with the wide range 5W-40 would be appropriate. However if it is a piece of equipment that is only used in warm weather, then T5 15W-40 or some of the other 15W-40 oils like Del-Vac would cost less, and while T6 is a very good oil, an oil with less of a spread between the low and high number such as a 15W-40 would be less prone to shearing, especially in hot weather.
t5 is 10w30
t3 is 15w40
Not quite.
The triple t conventional comes in both 10w-30 and 15w-40.
I've seen t-5 in many different grades including 0w-30,0w-40 etc.
This is true. Our pals to the north have a greater variety of Rotella oils available to them. All I've ever seen in the States is T straight weight, T Triple 15w-40, T5 10w-30, and T6 5w-40.