1. Carparts, Hillsborough, NJ. has it
2. unfortunately, most truck stops, even those with DELVAC 1300 do not carry it.
3. you already know about AVLUBE.COM, even mailorder, it is in the same range or slightly cheaper that over-the-counter.
4. do not use google, use froogle.
http://froogle.google.com. It is how I found BG44K for 40% off list price!
sorry the lack of easy answers,
terry