I've used a product called Diesel Power +,made by Petrolabs Inc.,Englewood CO.The mechanics at work swear by it,say they have put 20,000 hours on an injection pump.It's hard to find though,only 3 places in the lower mainland,I get mine at the GM dealer in Langley.One bottle does 30 tankfuls!I showed a Cat mechanic my can of Diesel Purge and he said it wouldn't hurt but he didn't think it was going to help much.I went to Valley Injection in Abbotsford and they told me to try the Stanadyne Performance formula.I doubled the dose and didn't find much of a difference.Greg ,you found Lubro-Moly products at Eidelwiess motors in Surrey?And what are you doing hanging out at truckstops