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Current Deals

Hy-per Cool Radiator Cleaner & Super Flush

$5.00 Mail in Rebate

Now available for a $5.00 mail in rebate anywhere you purchase.  Just submit the receipt using the link below.

Hy-per Cool Super Coolant

HPC100 & 4405 - $10.00

Purchase both the Hy-per Cool Super Coolant (HPC100) and the Hy-per Lube Zinc ZDDP Supplement (4405) together and receive a $10.00 rebate.

Hy-per Diesel Complete Fuel System Treatment

Save $5 with a Mail in Rebate!

Now available with a $5 mail in rebate, no matter where you purchase. Just submit your receipt below.

Hy-per Fuel Complete Fuel System Cleaner

Now with $5 Mail in Rebate!

Now you can save $5 off your purchase with a mail in rebate, no matter where you purchase. Just submit your receipt below!

Hy-per Lube Oil Supplement

$3.00 Mail In Rebate

Now available with a $3.00 Mail in Rebate anywhere you purchase. Just submit receipt using the link below.

Hy-per Lube Zinc ZDDP Supplement

Save $5 when you purchase two bottles at the same time!

You can save $5 when you purchase two bottles of our Hy-per Lube Zinc ZDDP Supplement (product #4405).

HPC100 & 4405 - $10.00

Purchase both the Hy-per Cool Super Coolant (HPC100) and the Hy-per Lube Zinc ZDDP Supplement (4405) together and receive a $10.00 rebate.