Where to find Castrol HD-40 Oil?
 

Anyone know a supplier with Castrol HD-40 wt (straight 40 weight) in stock? Been looking for 2 weeks.. Thx!

Quick search all I could find is Oreilly’s
https://www.oreillyauto.com/detail/c...00-ford-ranger

The HD30 appears to be readily available. Swear i saw it (HD30) at Home Depot today

Been waiting 2 weeks for O'Rielly's to get some in from their Hou warehouse. Called them back today they said it's on backorder. Saw it on Jegs for $12/qt last week but now that's gone Crazy..

Saw the HD30 in a few places but 40wt is all I've ever used in these engines. I'm already a little behind the curve using the 10 psi/ 1000 rpm rule.

Summit says more than 10 available :
https://www.summitracing.com/parts/cao-06143

If they don’t have it what others are you open too ?

Humm, must have seen it at Summit instead of Jegs. Anyway, $12/qt is ridiculous. If the local parts stores had it, it would cost ~$7/qt.

Don't really have a back-up oil in mind. .I'm a bit OCD abt changing brands/types/weights of eng oil.

I found 8 qts locally,,, I think (computer says they have it).. Need 8 more qts.

I get it. It’s hard not to be with a good friend, especially when disappeared. :)

what are you running straight 40 in?

A couple of 468 full roller (NA) engs. 90 deg+ air temps.

Summitracing.com has price marched items for me in the past, it can't hurt to ask.

Yep as long as you can show them online pricing they will match it...been getting tires like that for years from them. I find the cheapest i can find online then call them and they beat the price by $1
dont care much about them beating the price but i feel better getting fresher tires from them then who knows what storage warehouse other tires may be coming from :)