I was surprised that when I searched this website the word “additech” didn’t turn up any hits.
For about 6 months now, every time I fill up at Wal*Mart the gas pump asks if I want to pay a few dollars extra to have Additech added to my fuel to improve gas efficiency. I’m wondering if Additech works, and if it improves fuel efficiency enough to be worth paying for it.
No, and No. It’s a scam. Don’t waste your money.
What he said.
The correct spelling is “Add-a-Profit”
Skip it. They’re pandering to the tens? of millions of people who think that a cleaner will prevent a problem or is the answer to one.
Wonder how many bottles of injector cleaner WalMart alone sells every year? 
Agreed. Every time I hear that stupid phrase “friction modifiers” the red flags go up.
Buy would Wal*Mart mislead me? 
Actually, friction modifiers are legit, they are an important component in modern motor oils and transmission fluids.
In some oil, true; in gasoline additives…why?