Diesel engine oil shortage predictions, will it happen?

I have noticed a lot of chat online + vids up talking about a diesel engine oil shortage coming because the additives from chevron + lubrisol are currently not producing + have not been for a while now + will not until 2023 sometime so by early sept. at the latest we will see this happen 1st slowly then get really bad by about nov. with around 10% of trucks dropping off the road each week due to the shortage according to them...now i have checked many auto dist. in my city (almost 1 million people) up in central canada + 0w40 is pretty much not around for 3 weeks now with some 5w40 out there but mostly only store brands as Mobil1 delvac + Rotella are gone now + have been mostly for about a month. Seems like a pretty healthy amount of 15w40 but that is being limited to 4-6 gallons a purchase but non Mobil1 + Rotella that are rarely around unless they are 15w-40 so these dealers must know something also. I have also checked online in the USA mostly from Autozone in places mostly through the midwest + its the same with very little to no Mobil1 + Rotella but it seems for now a pretty healthy amount of non those brands but mostly 15w40 + with limits. So it is very true to the gen. public who get their oil not in bulk unlike trucking ind. I have also heard companies who buy bulk cannot buy the usual amount in barrels ect. as they are being limited also...not always but i have read that some can only get 1 after ordering 2 barrels ect. There does not seem to be a great deal of knowledge about this even in the automotive ind. although about 1/3 of the guys in these stores + esp. the top guys in these stores who i ask to see are very aware of this pending huge problem on the horizon as 1 told me he loses sleep at night thinking about later this year.... so i would like to get input from the guys who drive these 18 wheelers that put food on our table have you/they heard about this + the BIGGEST Q. i have is....has the trucking ind. stocked up on this stuff before it runs dry...If it runs dry + typically how many months worth of oil does the ave. trucking company stock up on diesel engine oil....also what % of 18 wheelers run syn. 0 or 5w40 in their trucks compared to the 15w which i know most do but of course the winter is coming so syn. is great for that period esp. in the N. USA + Canada of course....a lot of Q. + a lot to unpack here but cannot wait for you truckers out there thoughts.

 

What % of you 18 wheelers of any make run 0w40 or 5w40 in your rigs....i have read + watched vids that it runs cleaner, smoother + most import. longer by up 50% between changes (30-40k miles) so if there is a diesel oil shortage which i do 100% believe there will be in the fall.....syn. oil would be gold esp. for the fact you can run it longer when a great % of truckers + farm eqip. ect ect will not be running at all. Now i know its more expensive but i have seen trucker vids on UT talking about the dif + have seen many old timers that have been running 15w for a long time + they made the switch when looking at the overall benefits.