Originally Posted By: Johnny
NPD is the source. They provide numbers to all of the oil companies that subscribe to them. My personal source is a contact within Shell. If you want the current rankings they are:
1. Pennzoil
2. Quaker State
3. Valvoline
4. Castrol
5. Use to be Havoline
6. All the rest
The only thing that has changed since 1985 on this list is that Castrol use to be #3 and Valvoline was #4 until about a year ago.
If you want to become a member of NPD you can send them a check for $2,500.00 for a years subscription and they will send you a report every month. NPD does market share research for every thing that you can think of from motor oil, dish washing soap, laundry soap, to under ware. They have been the go to source since 1965. As for as I know every major oil company in North America uses them.
Does this include off brands like WM ST, i would have expected that to sell a lot. Mobil didnt make the list, huh!.