Our antifreeze products are all virgin products, no recycled glycol. The gold (universal) product is automotive and diesel approved for all colors. If you only want to carry one antifreeze drum in your shop the gold (universal) is the way to go. The gold concentrate is $8.00 per gallon which works out to $4.00 per gallon when you cut it 50/50 with your own water. The green (conventional) antifreeze concentrate is approved for automotive and diesel green coolants. The price on the green concentrate is $7.50 per gallon which works out to $3.75 when cut with your own water. We also offer gold premix 50/50 with distilled water.