No more 10w-40
 

I was at my local O'Reilly's looking for a couple of quarts of 10w-40 Valvoline. There was none. I was talking to the assistant manager and he said that there was not going to be any more made by any manufacturers. He also said the 15-40 Rotella was getting hard to get. He also told me that conventional motor oil was going to slowly be phased out.
Has anyone else been having trouble getting oil in your location?

yep, local walmart had none, zero, zip, nada conventional oil on the shelf the other day. Not even house brand super-tech.

Replaced by some kinda synthetic "blend" whatever that is.

Summit has it: https://www.summitracing.com/parts/vlv-vv141

I was at Walmart this morning they had rotella 15-40 I didn’t get any I just did a oil change yesterday. I didn’t look for 10-40 so not sure on that. They didn’t have any atf-4 on the shelf. I think they are all having problems with inventory.

I had basically the same experience recently. But I was looking for conventional 10w-30. Castrol GTX was it, and only in the 5 quart jugs, no single quarts. Plenty of Rotella though, and other 15w-40 diesel oils. Most of the automotive oils were synthetic, or synthetic blend. Not sure if this is a trend, or just the supply chain stuff that's prevalent in lots of products right now.

I am good. I still have 160 quarts of the 15w40 High Zinc 1400ppm oil I bought years ago.

Cheapest $300 I ever spent for a "Pontiac" part on the shelf.

Tom V.

Oil is definitely changing. Now available in non-petroleum form

https://evolvelube.com/formation-of-...ubricants-inc/


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I usually buy my Mobil 1 10W-30 at Costco when it's on sale. No more. No 10-30. They have 0-20, 5-20, 5-30. Costco obviously caters to the majority of users. used to use 10-30 on everything, now i need to stock 3 grades with my newer vehicles.

Yep the motor oil scene is changing, even in synthetics.

George

Bought 10w40 pennzoil at Homedepot a month ago. At Wally world yesterday for Mobil 1 for truck no 10w30 or 40 pennzoil.

Great, now my beater daily driver will be leaking oil all over the driveway.

What about Lucas with the zinc, moly phosphorus additives?

https://www.summitracing.com/parts/luc-10683-1

I can still get VR-1 and going to start running that in my Grand Prix. Been using VR-1 Valvoline in the GTO for over 30 years. I have only been able to find Rotella at my local Wal-Mart once in the last six weeks. It's over $5 a gallon cheaper there than anyplace else.
The guy that built the V-10 Dodge for me last year specifically said no synthetic oil is too used. I don't have any idea what to do except start buying all the Valvoline Racing oil I can lay my hands on so I'll have oil for my Pontiac engines.

10W-40 has been in a slow discontinue cycle for several years now. Non-synthetic oil has as well to a lesser degree. Other than raw price point, their is little reason to run a non-synthetic engine oil, with these few exceptions:
1. New engine break-in especially with cheap iron piston rings, and a lousy hone job. (backyard ball hone) Non-synthetic would help bed-in the rings. 2. Flat tappet camshaft break-in. (would need break-in specific oil or an additive for best results) Other than that, I really can't think of a reason someone would "seek out" non-synthetic oil, other than cost of course. If just the viscosity is a concern and you want 10W-40, 5W-40 and 5W-50 is readily available in synthetic as well as 5W-50 for very wide viscosity coverage.

Amazon still shows Valvoline High Mileage 10W-40 5qt jugs
 

$17.47 delivered. Six jug limit.

https://www.amazon.com/dp/B008QDXADW...ter_B098J9R5FR

Walmart has oil, plus I pick up a few trailerpark girls while I’m there.
No more pf24’s either.

I can kinda see 10-40 disappearing since it's mostly used it as a slightly thicker oil to prevent leaks or burning oil due to worn valve seals or rings for engines that originally called for 10-30. What is the last manufacture that specifically called for 10-40 oil, anyway? Was the ever one?

I don't see 15-40 going anywhere since a lot of diesels use it. Yeah, I know there's a lot of synthetic replacements like 5-40w but that's just asking for trouble on older and higher mileage engines.

We still stock plenty of the conventional 10w-30 and 10w-40. The 5w30 and 5w20 are all going to synthetic blend. The Rotella 15w40 was in short supply, but that seems to be over. We still sell plenty of the VR1 and the Lucas oils. Rotella 10w-30 is in short supply right now.

I haven’t used 10w-40 in years, my mechanic told me to stop using.

Still some SAE30 and 40 for my worn out junk and air cooled engines

Back in the mid eighties GM issued a bulletin that the additive package used in 10W40 could cause sticking of the oil rings on the piston, resulting in oil consumption problems. I never had used it before then, and never recommended it to my customers, or used it myself.

I used and currently use 10W30 in all my daily drivers, and switched to synthetic about roughly 15 years ago in all but my diesels. I use both the conventional 15W40, and the Rotella 5W40 synthetic in most of them. I see that they've recently come out with the 15W40 in Rotella synthetic so I may buy that next oil change. Problem is I hardly ever change oil using the by pass filter systems, 35-40,000 miles is usually when I change oil, so I have a ways to go......................:D

With the price of oil escalating I'm glad I don't follow conventional oil changing practices, those by pass oil filters do pay for themselves in savings in oil longevity, and engine wear......:thumbup: