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Default OT - Berryman's B-12 fuel additive

On 3/31/2011 7:00 AM, Stormin Mormon wrote:
The mileage on my replacement Blazer is a bit low.
15 MPG, where the last Blazer ran about 18 MPG.

A friend reccomended Berryman's B-12 gas additive.
Says it's $2.97 at Walmart. Found it at Walmart. top
shelf, and this store had only two left, so it took a
while to find it. A couple days ago, I put in one can
of that B-12 fluid. I'd checked my mileage at 15.2 on
the last tank. This next fill up came up 16.3 MPG. I
don't think I changed my driving style, and the weather
is much the same. So, I'm figure that fluid did some
good.


Most likely it did nothing if it's a fairly new vehicle. You'd have to
check the mpg a lot more than once.

It's basically toluene, acetone, hexanes, and methanol, same as most
fuel system cleaners. The actual ingredients would cause your mpg to go
down, but if something was gunked up it might have helped.