I was about to buy the same product but the truck had something else in mind. The water pump started leaking haha. My oil temps doesnt warm up as fast as the coolant. it takes about 30 min to get the oil up to 150f. When I start up the engine, oil pressure seems so slow to get up at 40psi at 50f. I think oil heater like that is good because you need warmer oil than you need warmer coolant. Ive also looked in to pad heaters. In the end, I think im going to be using a coolant reservoir from a prius. Its like a huge hydroflask that keeps the coolant warm. instead of coolant, I would run oil on it. so the next time I start the truck, it would have warm oil ready to go.