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I have noticed a problem with new Velcro I bought at Walmart, the adhesive lets go when the Sun shines on it. It turns out Velcro sells a Velcro for plastics that has an higher temp adhesive that solves the problem. The part numbers are 90850 (strips, $3.00) or PN90881 (tape, $8.00) and some ACE Hardware stores carry it. You can use an hair dryer to heat up the Velcro to remove it and Lacquer thinner to clean off Grill Cover. Then cut fuzzy squares to size and attach to foam squares on Grill. Then attach hard Velcro loops to fuzzy Velcro and line up Grill Cover like the first time you installed it. You are back in business again. :) Paul

Well the testing results are in and at 70mph I see a net gain of 3mpg at range of temps from 45-70 degrees F. This also seems to carry down to 40mph or so. The covers are not air tight(80-90%) and are easy to install. I used Velcro squares to attach Covers to Grill, it makes it easy to install and remove. The Covers are made of strong Polycarboneate Plastic that won't shatter and can take fair amount of abuse. They are hardly noticeable unless you look hard.The plan is to remove bottom Cover when temps get into the 70's degrees hwy driving. Remove middle Cover and put New Cover with cut out for radiator opening when in 80's hwy driving. IMPORTANT NOTE: radiator fan comes on when Water Temps reach 215 degrees F and thermosat opens around 195 degrees F. If there were enough orders for the Covers I could see a price around $50, maybe lower if in the volume was in the hundreds. I'm looking for someone to try out the Covers to see if they get the same results. Will have a picture shortly.

My last fillup was 536.5mi GPS corrected ,11.9gal., 45.1MPG, 50%city and 50Deg.F average temp. Post what kind of improvement you think you have gained.

Well the testing results are in and at 70mph I see a net gain of 3mpg at range of temps from 45-70 degrees F. This also seems to carry down to 40mph or so. The covers are not air tight(80-90%) and are easy to install. I used Velcro squares to attach Covers to Grill, it makes it easy to install and remove. The Covers are made of strong Polycarboneate Plastic that won't shatter and can take fair amount of abuse. They are hardly noticeable unless you look hard.The plan is to remove bottom Cover when temps get into the 70's degrees hwy driving. Remove middle Cover and put New Cover with cut out for radiator opening when in 80's hwy driving. IMPORTANT NOTE: radiator fan comes on when Water Temps reach 215 degrees F and thermosat opens around 195 degrees F. If there were enough orders for the Covers I could see a price around $50, maybe lower if in the volume was in the hundreds. I'm looking for someone to try out the Covers to see if they get the same results. Will have a picture shortly.