# E85 seasonal mix

**URL:** <https://forums.speedlife.net/t/e85-seasonal-mix/264109>\
**Category:** Shift518 Automotive\
**Created:** [June 16, 2012, 6:27pm UTC](https://forums.speedlife.net/t/e85-seasonal-mix/264109 "2012-06-16T18:27:53Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![TurboTravis](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbotravis/32/6406_2.png) [@TurboTravis](https://forums.speedlife.net/u/TurboTravis)\
**Post date:** [June 17, 2012, 8:38pm UTC](https://forums.speedlife.net/t/e85-seasonal-mix/264109/8 "2012-06-17T20:38:32Z")

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> [@HKSPOWEREDGTR"](#):
>
> Anyone ever tested to see how accurate those test-tubes are? I’ve seen them read as high as the low 90’s on some other forums which has made me a little skeptical. Not sure it’s warranted, just asking.

> [@Mark's SRT re-do -- no traction at all slight\_smile page 5](https://forums.speedlife.net/t/marks-srt-re-do-no-traction-at-all-page-5/49901/20):
>
> i’d say that the test tube works perfect… had no issues last year… I only used the mobil across from keeler to fill up… travis loves his high priced gauge but a few % -/+ i dont think will cause any issues. My car is getting the proefi ecu as we speak and that comes with its own reader so I will no longer need the test tube…

I use both the test tube and the Zeitronix. The test tube is 100% accurate when used properly. If you don’t fill each fluid to it’s proper line, the reading is going to be a little off. I personally use a syringe to fill it to ensure proper readings.

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