I have paint for years, If U shake it up on a regular basis and flip the cans at least now and then , U will be doing yourself a big favor, I have taken paint from people that they said was bad, sure it was either completly separated or close, all it takes is patience, and some times I have had to add thinner, i do it by eye, and mix and mix, I have had cans frozen solid, and brought them back also, it takes patientce and sometimes some thinner, I also have painted down to 40ish degrees, Maybe one could not match a new car paint like this, but these trucks look and wear just fine, have been doing it for years, I recently bought a paint shaker from a hardware store going out of business, It is awesome, I shake all my paint every now and again, I have given up on bringing my paint to the garage at home in the fall, i let it stay in the conex at my shop all winter and just re mix it in the spring, ...the spray cans fit inside the quart plastic container holder that goes with the shaker, so i can even mix them .