Forum Discussion
Ron3rd
Jan 09, 2019Explorer III
naturist wrote:
Get DEF wherever it is cheapest or most convenient. The composition is spelled out in Federal regs. There is NO allowance for “secret sauce” or any amount of deviation. It’s made of two of the cheapest compounds known to mankind, so incentive to make it cheaper is lacking, as well as outright illegal.
Correct; unlike motor oil, there is no good/better/best, it must meet a standard and it's all the same, like buying isopropyl alcohol at the drug store.
Buy the cheapest you can find. I use the WalMart SuperTech house brand at $7.88 per 2.5 gal jug.
I've used the truck stop in the past and with the small amount I use, it's just not convenient for me.
About Travel Trailer Group
44,030 PostsLatest Activity: Feb 04, 2025