joerocker said:
So what do you think? ARE we wasting our time/money adding ANYTHING to the fuel? Is stanadyne or power service a waste?
Ask a single questiion like yours and you will get several different opinions.
Most additive use is faith based with little or no good engineering data. Ahh, to have a corner on the market on petroleum distillate the chief ingredient of most of the snake oil.
Anti-gel additives for winter driving are a good thing. Cetane improvers, in moderation, can be a good thing, especially when actually needed. After that you are getting into a gray area which is most often faith based. Most additive sellers can give you a jillion personal testimonials from a collection of folks who are true believers. Few can offer hard science, irrefutable data from repeatable experiments performed by third party labs with no monetary interest in the product.
One of the chief errors in logic relating to the use of snake oil (fuel additives or diet pills or sex drive enhancers) is known as "post hoc propter ergo hoc" which translates as, after this therefore because of this. You use an additive for 200, 000 miles and get good results so you think it was because of the additive. You do x and later y happens and jump to the conclusion that x caused y. Maybe and maybe not. I peed off the back porch and the next day it rained. Do you think I caused the rain? Wanna hire me?
There may be good additives available and there may be good results obtained in some situations using them but there is a shortage of scientific evidence. Why? If a producer of additives could prove a benefit don't you think they would and then sell the **** out of the product due to the demand the proof produced?
UNSUBSTANTIATED claims and various good old boy testimonials abound but where are the repeatable scientifically significant results? IF you had a product that an independent lab could verify as beneficial you couldn't make the sutuff fast enough to keep pace with the demand.
Pat