Originally Posted by krismoriah72
Perhaps Citgo used to be their house oil, now it is Warren?
Yep. HK used to be Warren way back, was made by Citgo for a while, then Warren bottles started showing up again late last year. I had started a thread here about the most recent change last December.
Originally Posted by krismoriah72
However Rural King does not list the Synthetic Blend Harvest King oils on a search..
They have Synthetic Blend and High Mileage Harvest King in RK stores down here, just a matter of finding it in stock. It sells out quick.
To the OP, at $8.91 for 5 quarts, I'd be buying as much Citgo Superguard as I could carry. It's a stout oil for the price, used to use it and the old Citgo-made RK all the time.