Hello John,Hi devilspns:
Honestly I think the product number difference has to do with the size only. I found this link which shows the gallon size:
And be sure to check out its number of 5 star ratings!! 10,266 folks can't all be wrong! Even more than before!! LOL! Also shows 436 questions answered as well. I have 2 quarts of the stuff sitting in my garage right now which I use in my DB7VV gasoline/petrol everytime I fill up. This was before I knew there was/is a gallon size available. I have no doubt it's the same, just a larger size. Once you start using it in your Aston you'll never stop, trust me it's really that good. After, I had my fuel injectors professionally cleaned I was told to install and use them right away and to avoid letting them sit on the shelf due to a potential for sticking . But circumstances beyond my control prevented this (needed new cam cover gaskets from England) so once they were installed I got a couple of misfires causing a CEL light to come on, which I'm certain were caused by sticking injectors.
I then added the Lucas fuel treatment to my fuel and the problem went away and has never returned since! There are 3 things that are essential to prevent 'CEL' lights from popping up in the DB7: No Vacuum Leaks, No sticking fuel injectors, and a battery that's at 100% of its charge. My DB7 runs beautifully and is such a joy to drive when all 12 cylinders are firing as they should!
Was wondering about the amount to put into tank,not
much help on container !!!