Spec Fuel - East Grand National Race
All divisions in MMRA are
required to use common "pump" fuel sold at regular gas stations for
passenger cars. This rule is designed to help save racers money, and
also reduce the potential for cheating with high compression engines, or
dangerous fuel additives. This has been our policy for years and is
outlined in our rulebooks which are sent to every member and available for
free download on this website.
This is addressed in the MMRA rulebook with the following rules:
Unleaded gasoline available at a corner service station only. No racing
fuel, aviation fuel or additives of any type are allowed. MMRA reserves the
right to use a pump around system. Any competitor who does not allow fuel
to be pumped will be disqualified. Fuel may be tested by MMRA officials
using a Digatron fuel testing meter.
MMRA recommends that racers purchase fuel for each event at a local service
station near that event to minimize the chance of having fuel that does not
match samples taken by MMRA for reference.
At the East Grand National race, MMRA has designated a specific fuel source
as described in our rulebook and all fuel will be checked versus this fuel.
Cars running with fuel that does not match the spec fuel will be considered
1. Why is this being done? Fuel is an important part of
racing and something that needs to be kept equal for all competitors.
There are two ways to ensure everyone is on an equal playing field with fuel
- pump around or spec fuel. The pump around system requires the
pumping system, produces an unknown "mix", and requires all competitors to
constantly come through the pump-around to get fuel throughout the weekend.
The spec fuel system only requires everyone to get their fuel supply once at
a close-by station. It is simpler than the pump-around yet still
effective at ensuring a level playing field.
2. What is the spec fuel? Shenandoah Exxon
601 4th Street
Shenandoah, VA 22849
Regular or Premium grade
3. How do I get there? For travelers who come from
Interstate 81 and Harrisonburg, VA - you will pass right by Shenandoah Exxon
as you travel north on route 340 toward the track. If you are already
at the track, turn right as you leave, go into town and the Exxon will be in
the center of town on the left hand side. The station is only about 2
miles from the track.
4. Why was this station chosen? It is the closest major
brand station that sells pure gas. Other stations in town have an
ethanol mix or are not as convenient to reach.
5. When is the station open? You can buy fuel until 11pm
on Friday night and they open at 6am on Saturday morning. There is
also a McDonalds next door.
6. How will fuel be tested? MMRA will purchase samples of
both regular and premium grade fuel and will use our Digatron fuel meter to
compare the readings from our sample, to the fuel in racecars.
7. What about the fuel in my fuel cell now? Our rules
require standard pump gas. We recommend you pump out all fuel in your
cell now and run it in your passenger car. Then, fill your fuel cell
and extra cans with the spec fuel at Shenandoah Exxon.
8. I have other questions. - Send an e-mail to