Archoil is great as a gas additive in winter to keep the effects of ethanol at bay. It's also essential for small engines if they're not used regularly. The fuel stays fresh. I add it to my 2 cycle mix for my 28 year old snowblower and it starts on the first pull!
First full tank didn’t do much, the sencond full tank my check engine light finally went off related to an 02 sensor problem i had. Guess it does do some sort of cleaning.
All my vehicles Are 20 years
Old the reason all still have them . Is with the help of arch oil products.
I find my 7.3L starts more easily in cold weather when I use AR6200 in the fuel. Forgot to put it in a couple of weeks ago when it got down to 15 degrees
at night. Next morning couldn't get it started. Waited until later in the day when it was warmer, added the AR6200 and it started right up.