e85 conversion specialists and more for your late model GM vehicle

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Skid Mark Garage LLC

Ft. Worth, Texas 76262, United States

612-486-2350

Hours

Monday - Friday: 10am - 4pm CST

Saturday: By appointment

Sunday: Closed


Returns, promotions and more

How are returns handled?

 Mistakes happen, if you ordered the wrong item and it is new / unopened in the original packaging, we will issue a refund. Installed, modified or custom parts are non-returnable no exceptions.   All returned items are subject to a 20% restocking fee,  must be 1st approved by Skid Mark Garage and will receive a RA (return authorization) to accompany the return. If the mistake is ours, we will even cover return shipping. Please contact us for more information on returning an item or to begin the process of returning your unwanted item. 

 Please use the contact form above should you wish to initiate a return. 

Discounts and promotional pricing

From time to time, we will offer promotional prices of new products or offerings. Promotional prices are not retroactive and cannot be applied to past orders. 

Additionally we are proud of our service men and women and are grateful for your service. So we offer all active and retired military service personnel a 10% discount. Please contact us to obtaIn a military discount code prior to your purchase .  

Please use the contact form above should you wish to inquire about discounts or promotional pricing.

Club Sponsorships and Pilot programs

We pride ourselves on offering a very competitively priced product and cross shop competition to ensure we have the best price on a comparative product. If you find a product we offer for less elsewhere, please let us know. 

Do you belong to a car club or group that would be interested in a bulk buy? Great! Please contact us if you are interested in a group priced rate.

Pilot Programs are a great way to test market and develop products. if you have a vehicle that you feel could be a new market for us. We are always looking to expand into new catagories and may be able to offer you a pilot program discount. 

 Please use the contact form above to inquire about club, group buys and pilot programs.

Is E85 for me?

 E85 Benefits 

More Potential Power: we’ll start with the good stuff first—E85 has an octane rating of 100 to 105, which is 9 to 14 points higher than the 91 octane premium fuel found in many stations. E85 can support lots of boost for forced-induction engines, and crazy high compression ratios in N/A applications. Always a good thing.

Better Cooling: ethanol absorbs over twice as much heat during combustion as gasoline does, which makes it a much more efficient cooling agent than gas.

Cleaner Burning: engines burning ethanol leave fewer carbon deposits on valves and pistons. The exhaust actually smells better, too.

Smoother Power Delivery: one often heard comment from E85 consumers is, “Wow, the engine just runs so much smoother.”.

Reports of Your Fuel System’s Demise Are Greatly Exaggerated: E85 has been has been gradually introduced in larger and larger quantities into our gasoline since as early as the late 90's, many enthusiasts who’ve done long-term E85 testing have reported few to no fuel system issues on even straight E85. Will every fuel system part last 200,000 miles on the E85? Probably not. But it likely won’t last that long on gas either. 


 E85 Drawbacks

Moisture Can Cause Problems: alcohol is hygroscopic, meaning it readily absorbs moisture—so E85 introduces more water into your fuel system. This isn’t a huge problem in modern fuel systems, but older vehicles with stock fuel systems can see accelerated corrosion unless upgraded. Most cars built since the late 90's have Ethanol compatible fuel lines and components.

Slight Fuel Economy Losses: E85 has roughly a third less energy than gasoline, which means that it takes more E85 to equal gas’ power.  However, a modern vehicles with aftermarket E85 tuning can return mpg ratings within spitting distances of their factory gas ratings.

Fewer Places to Fill Up: Unless you live in the Midwest, finding E85 can be challenging, especially if you’re on a road trip in unfamiliar territory. This is where converting to "flex fuel" capability really shines over a dedicated "E85 tune". Having the ability to switch between gas and E85 automatically on the fly makes this a non-issue. This hold especially true for seasonal blend changes and eliminates the need for "testing" ethanol content at the pump, simply fill up and the flex sensor tell the PCM to adjust the tune based on content.