If there is one class of vehicle that is routinely abused, it's a fire engine. Little warm-up time followed by full throttle acceleration followed by little-to-no cool down time before the engine is shutoff. I'm concerned with the turbos primarily, especially coking due to the lack of cool down.
The engines in question range from a Cummins L10-300, a Cummins ISC8.3-330, a Ford 6.8L V10 gas, and a Ford 5.8L V8 gas. I'm more concerned for the diesels and their turbos than I am about the gas engines, but the department wants to use one oil in all the engines as it helps with supply and logistics.
Anyway, what oil would you recommend? I'm thinking that a premium synthetic would help here, such as Amsoil, Delvac 1, or Rotella T Syn. I like Schaeffer's Supreme 7000, but feel that since it is a blend, it won't perform as well as the full syns when it comes to the turbos and the lack of cool down time.
The engines in question range from a Cummins L10-300, a Cummins ISC8.3-330, a Ford 6.8L V10 gas, and a Ford 5.8L V8 gas. I'm more concerned for the diesels and their turbos than I am about the gas engines, but the department wants to use one oil in all the engines as it helps with supply and logistics.
Anyway, what oil would you recommend? I'm thinking that a premium synthetic would help here, such as Amsoil, Delvac 1, or Rotella T Syn. I like Schaeffer's Supreme 7000, but feel that since it is a blend, it won't perform as well as the full syns when it comes to the turbos and the lack of cool down time.