E15 and Your Car

About 75% of cars which equals about 155 million vehicles on the road were not built for E15


Table: was your vehicle designed and warranted to operate on E15?

Auto manufacturers and models recommendations for
E15 in non-flex fuel vehicles as of 2017.

In response to lower gasoline demand, EPA is trying to
force increased use of E15 gasoline, fuel that contains
up to 15 percent ethanol (compared to the standard
grade used in the U.S. that contains up to 10 percent
ethanol). Many groups are concerned about this effort,
including automakers, AAA, the California Air Resources
Board (CARB), and environmental non-profits. The
stakes are high for consumers who could be left
stranded on the roadside and/or stuck with potentially
expensive repair bills.

Testing by the Coordinating Research Council (CRC),
which has been the gold standard in fuels and vehicle
research for the better part of a century, determined
that millions of vehicles on the road today could suffer
engine damage from using fuels containing higher levels
of ethanol than for which they were designed. Likewise,
a separate CRC study found that fuel pump systems
could seize up or otherwise be damaged by E15 fuel.

Most vehicles on the road today aren’t recommended for operation on E15. Here’s
what some automakers have to say about E15:

High potential
for consumers to
inadvertently misfuel
their vehicles
thereby voiding the
vehicle’s warranty – AAA 1

We are not
confident that
our vehicles will
not be damaged
by E15. – Chrysler 2

Ford does not
support the
introduction
of E15 into the
marketplace for
the legacy fleet – Ford 2

We are not
confident that our
cars and trucks
from model year
2001 and later will
be undamaged by
the use of E15 – GM 3

The EPA tests
failed to
conclusively
show that the
vehicles will
not be subject
to damage or
increased wear – Hyundai 2

Any ethanol blend above
E10, including E15, will harm
emission control systems in
M-B engines – Mercedez-Benz 2

Toyota cannot recommend the
use of fuel with greater than
E10 for Toyota vehicles – Toyota 2

Most vehicles on the road today aren’t recommended
for operating on E15 by manufacturers.