75W90 Cost Comparisons

["Paul Dorsey" <dorpaul@negia.net>]

Most of what I ask this list are questions that don't need answering anytime
soon. An example is:

I was just at Autozone and shopping for differential oil for my TR3.

Valvoline Synthetic 80w90 was $4.39 for their tall plastic bottles

(sorry, I forgot to look at the amount of fluid),

Castrol was $5.00 for 75w90 and

COASTAL Full Synthetic was $12 for the same amount of 75w140 !!!!

Good Grief! COASTAL is a brand I usually save to only put in my WHEELBARROW!!

WHAT'S UP WITH THIS?