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 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).