Originally Posted By: Wolf359
Originally Posted By: simple_gifts
Originally Posted By: wemay
Originally Posted By: FranklinJL
Dude your rolling a versa....it doesn't matter
How this helps the OP i have no idea.
+1; I guess since it isn't an expensive car, no need to maintain it. He can just go out an buy something else when this breaks, after, of course, being crucified on BITOG for not maintaining it.
Maintaining it means following the manufacturer recommendations. With few exceptions, manufacturers typically don't recommended any snake oils. I think about the only thing they might recommend is Techron in the gas. There are very few cars that last longer because additives were used. My last car lasted over 200k without using any snake oils.
Manufacturers spend billions designing engines and have hundreds if not thousands of engineers working on them. If any of it really worked, they'd recommend it because then their engines would last longer than the competition. They only sell snake oils because people buy them. They sell pet rocks and chia pets too.
Maybe true for engine oil; however I don't think you can make the same statement for fuel; as there are equally billion dollars spent trying to optimize the cost of fuel to maximize profit for the oil industries.
There are such things as dirty fuel injectors, and the engineers you laud considered it normal maintenance. As a counterpoint; certain engines with DI vehicles and carbon issues contradict that the engineers are perfectionists. Instead they are humans that have to balance pros/cons.
The only vehicle where you can make such a statement is perhaps a electic where there is no traditional fuel.
It is definitely in Service Manuals as well as some owner's manuals to run fuel injector cleaner and top end cleaners, so much so that certain brands even relabel and rebrand it as a genuine part (e.g. "BMW" fuel injector cleaner "GM" top end cleaner, audi/vw injector cleaner). So indeed the Engineers do sometimes see it is an issue