What is the STP schedule to be followed on MOs. I typically use STP every 1500 miles and full fuel injection clean every 15k miles on my altima. Is it good to follow the similar schedule. When will new MO really need this cleaning products ?
If you use high quality gasoline, you should not need fuel injection cleaners. In fact, if you read your owners manual, there might even be a section which says Nissan does not recommend fuel injection cleaners. I used to drive a 97 Maxima, kept it completely perfect to 100,000 miles. I used only one type of injector cleaner - Chevron Techron Concentrate, but that was like once every 30,000 miles.