The 6 Best Octane Testers (2022 reviews)

The tester is a must have addition for your daily life. The Rev X Octane Tester is easy to read label and instructions that are laminated to prevent fading or the ink rubbing off. Test your fuel for proper ethanol levels to ensure it does not damage your engine. These smaller components are much more susceptible to ethanol damage at a much faster rate.

The tester is seen at the pump with lower miles per gallon. Further, the tester is designed for ethanol and has much smaller fuel system components. Finally, the rev x octane tester is ideal for fuel lines and it is expensive.

Almost all buyers agree that the tester is easy to use, best for the price. Further, a few say that the tester is a must for any auto mechanic. To sum up, most customers found the tester suits best, and no one questions it.

Why We Like This:

Ethanol increases the octane level in your fuel.
This works great, pretty easy and it comes with an easy-to-use.
High levels of ethanol could damage your fuel system and lower your fuel mileage.
This comes with readings of e10, e15, e20, e25, e80, e85 and e90.

Best For General Aviation: Aviation Specialties Octane Tester

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The aviation specialty octane tester should be able to handle its purposes and duties with ease. The aviation specialty octane tester allows the fuel samples to be returned to the aircraft instead of being thrown on the ground. Make sure this fits by entering your model number. And, it is the only "environmentally responsible" fuel testeron the market.

Lastly, the aviation specialty octane tester is really nice and it is new.

Most customers agree that the tester has a mesh screen in order to catch debris if there happens to be any, so you can inspect it etc. Moreover, a few say that the tester is a no-brainer and 100% worth the small expense. Further, they also found that this is much better than the little test - tube sized ones which some people use. Consequently, customers were eager to recommend it to friends and families.

Top Customer Quotes:

This is a bit on the large side but will hold up after many drops.
This fits into many cup holders onboard the aircraft or any baggage.
This will work with any liquid if your drain tubes fit.
This is a valuable device indeed.

Best For Flat Head: Asa Aircraft Fuel Tester

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The Asa Aircraft Fuel Tester is suitable and reliable and fits well with your daily purpose. The asa aircraft fuel tester is 6" long with octane color-coding molded on the side. . In addition, it can be trusted for good quality and it works great.

Finally, the asa aircraft fuel tester fits all quick-drain valves and has an adapter for recessed drains.

One customer says - "appears to be of high quality, just what I expected and wanted. ". Most buyers opine that the tester works well in sumping a c-172s with 13 sump points.

Why We Like This:

This is a screwdriver blade with both phillips and slotted heads.
One of the newcomers and featured product.

Best For Additional Preflight Duties: Asa Octane Tester

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The Asa Octane Tester's high-end materials make sure that it ages well with use. The asa octane tester is designed for heavy duty and it is affordable. With the short fuel tester from Asa, you'll avoid unwanted aerial surprises by catching and removing impurities from your fuel while safely on the ramp. Also, this is ideal for additional preflight duties.

Above all, the asa octanetester features both phillips and slotted screwdriver heads.

Almost all customers quickly discovered that the tester is great with a little adjustment. Also, they say that the tester is an airplane fuel tester, what more else is there to say.

Why We Like This:

Compact (4") fuel tester with slotted and phillips screwdriver heads.
Good brand reputation.

Best For Great Quality: Quick Fuel Octane Tester

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The Quick Fuel Octane Tester is specially designed for your daily purpose and has all the useful features. The quick fuel octane tester is precise and it is perfect for great quality. Make sure this fits by entering your model number. And, it is simple and it works very well.

Most importantly, the quick fuel octane tester works great, pretty easy and it is new.

Almost all customers agree that the tester provides a ballpark number. Further, they also found that the test is more important than testing for e-85 content for the accuracy of the test. Moreover, a few say that the only thing that could make this kit better would be to include some droppers to suck the fuel up and squirt it into the tester. Overall, many customers have used the quick fuel octanetester for more than a few months without any complaints, and it shows no sign of giving up.

Customers say that getting a octane tester, along with tester is useful.

Top Customer Quotes:

This is best for low cost and it is perfect for a great tool.
Works great, local station tested 85% ethanol out of the pump.
This works well for testing the ethanol content of e85.
Quick fuel technology e85 tester p/n 36-e85.

Best With Part Number: Holley Octane Tester

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We would, of course, be remiss if we didn't mention Holley octane tester for regular usage. The Holley Octane Tester is simple, works with part number, it works great and has a good design. With the added benefits of 105 octane,s cooler engine temperatures and improved emissions, Holley's e85 checker can make a winning combination with any of Holley's e85 calibrated carburetors and fuel-pumps for your vehicle. In addition, the tester is expensive and it buy again.

Lastly, the holley octane tester is absorbed, the holley e85 checker will indicate the amount of ethanol in the fuel.

One customer says - "Needed a reliable tester to get an accurate reading of ethanol to mix and make e30. ". Most customers quickly discovered that the tester works for checking e85 content.

Customers discovered that getting a octane tester, along with tester is useful.

Why We Like This:

Package dimensions: 3.555 h x 17.526 l x 20.32 w (centimeters).
This is good for country of origin and it is new.
Country of origin : United States.