So went and got the oil change done today and made the switch to full synthetic. Went to a shell rapid lube and had it done for 60 bucks, way on the expensive side but whatever let them worry about all the work. Got the Shell full synthetic. While we were up there paying the guy said its one hell of a truck and wishes he got that instead of his 07 Ram which he bought in 08. Said its got tons of power and felt great driving it for the little bit he did lol. So I thought that was kinda funny a Dodge owner liking the Titan so much. Then he mentioned our truck is in perfect condition except the Fuel injectors will need work soon? Whats up with that never heard of a car with 13k needing fuel injector work at 15k, hopefully someone can explain that to me. He said it was something about the gas we have around here but I couldnt really hear him. All in all good trip, was in and out quick, got a Dodge owner to spill his heart for the Titan lol. But whats all that fuel injector BS about? Oh and he didnt place a sticker on the window telling us the next time to get it changed, how long does full synthetic last?