Originally Posted by Frostbite
I just got my new injectors today. I plan to install them this coming weekend. As part of the injector change, I will be doing an oil change afterward to make sure that any fuel that runs into the oil pan doesn't get cycled back through the motor.
I have run Chevron Delo 400 15-40W since day one in my truck. I have heard of guys running synthetic oils but, I have also heard that maybe they aren't good for the longevity of the motor. One guy at work mentioned Schafer 0-40W synthetic. That sounds awfully thin to me. I see there is Amsoil 5-40W and their stuff certainly is reputable. I know this question is like asking what is the best kind of beer but, is now a good time to swap over to synthetic oil?
You can swap back and forth between synthetics and conventional at any time. What is Schafer 0w-40? Do you mean Schaefer's? Check to see if the oil meets any of the following specs CI-4, CI-4+ and/or CJ-4? If it does run it without worry, if it doesn't have a C-rated classification on the API donut don't put it in your truck.
Honestly, this time of the year is it going to be worth it to put a 0w-40 in your truck...will it get that cold? I mean a 0w-40 weight oil is designed for use in the arctic circle.