Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Checking The Alcohol Level In Gasoline (B15090B)
Reference number: B15090B
Supersedes refnos: B12040B
CHECKING THE ALCOHOL LEVEL IN GASOLINE
TECHNICAL SERVICE BULLETIN
| ACURA: | All Models |
AFFECTED VEHICLES
General Information
EDITOR'S NOTE : This article replaces "This New Special Tool Checks Alcohol Level in Gasoline," posted in April 2012 .
Gasoline/alcohol blends, such as E10, E15, and E85, are sold at service stations across the country. Clients can pump these blends into any vehicle that takes unleaded fuel, but not every engine can run on them.
So, if you've got a starting or driveability problem and you suspect the fuel, try checking the gasoline's alcohol level with the Gasoline/Alcohol Percentage Tester (P/N 07AAJ-E85A100). It's a required special tool that we sent to every dealer several years ago.
Here's how to use it:
- Unscrew the cap and fill the tester with clean water up to the water line.
- Fill the tester with a gasoline sample from the vehicle up to the gasoline line.
- Screw on the cap and give the tester a good shake.
- Stand the tester on its base and wait 10 minutes .
- Lightly tap the tester to get rid of any remaining bubbles.
- Find the gasoline/water separation line and read the percentage scale at the line. That's the percentage of alcohol in the gasoline. Check the vehicle owner's manual for the recommended percentage level.
- When you're done, rinse out the tester to avoid contamination. Be sure to use only clean water; don't
use soap! Any soap residue could emulsify the mixture and break up the separation line!
Need more of these testers for your shop? They're available through Acura parts stock.
And just so you know, we've posted a Tech2Tech video showing you this tool in action. Look for "Checking the Alcohol Level in Gasoline."
multimedia:A supplement to the article is available.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.