Ethos Fuel Additive

[freewill2008]

Someone here was wondering about Ethos a few
weeks ago, so I volunteered to do a test in
my commuter car. Ethos is an additive that
promises a unique approach to improving fuel
consumption.

The test car is a 1987 Volvo 740 with 2.3L NA
gas engine, 160K miles. It has run the same
35 highway mile round trip commute for 10 years,
making it a good test candidate. This is cruise
control driving with 2 blocks of city driving.
Even the fuel-up is constant; same pump every
time. Fuel consumption has been constant at
just under 26MPG except during the occasional
Western Washington snowfall.

Because this was a test of Ethos, nothing else
was changed on the car before or during the
test except engine oil.

Ethos recommends adding their product to both
oil and fuel. To start the test the recommended
amount of Ethos was added to the crankcase along
with fresh oil. They also recommend doubling
the amount of Ethos in the fuel for the first
couple tanks, which was done.

The test continued for 5 tanks of fuel, which
finished a $28 bottle of Ethos. Fuel consumption
ranged from a low of 24.9MPG to a high of 25.5MPG.
I could not achieve any improvement in fuel
consumption, so Ethos actually resulted in a net
increase to driving costs.

So much for that.

Bob Griesel, WA
'84 FC31 WLII
'87 Volvo 740
'95 Ford E250 Class 'B'
'98 Ford F150 SWB
'04 Honda CRV EX AWD