Thanks for the heads up! I’ve gotten excellent results from Delo 400 XLE 10W30 in the past, using it in my pre-EPA Series 60 Detroit. I guess I missed the clearance though. Locally I could only find 3 gallons. Dang It!!!
FWIW, I’ve been using Delo 400 XLE 15W40 year ‘round for about the last year and a half. IMO it does a great job, and it’s usually easy to find at my local Walmarts.
Lately I’ve keep about thirty gallons on hand, because it can sometimes be in short supply with this Covid-19 Supply Chain madness. I’ll be happy when the supplies are back up to normal. I think my local Walmarts have me pegged as an oil hoarder. They’ve actually asked why I buy so much of it.
It seems Rotella T4, Delvac Super 1300, and Delo 400 SDE, all in 15W40 are sometimes out of supply, then they’ll get it back in stock, and then it flies off of their shelves.