Shell Rotella T and T1 oil

Is the 4 cycle inherently more able to withstand higher ash but with the new addition of DPF not so? IDK, but it's not an important question to me as I have a set of 16V92's 2 cycles and it otherwise seems like a path to an extended argument.

My local boat store stocked "Rotella T sae 40" which below that stated it was "High Performance mixed fleet engine oil" It was not listed as "T1". This is the odd man out I've not seen it before and I cannot find it listed on any Shell website. The link with the MSDS for the "T" oil is not a Shell site but greatlakesoil so I think perhaps this oil is NLA? That's the info I'm looking for- we can all google and find what oil's are CF-2 rated but the Rotella T is the ghost here.

"Triple protection" is Shell Rotella code for multi grade; never to be used in a 2 cycle Detroit Diesel as you've pointed out.

The price difference between the Power Guard and Rotella is $30 a pail- and I need 8 pails to change oil. The decision to save money buying a cheaper product now vs high costs later is not lost on me- but I see no factual basis that any of the CF-2 rated oils are going to cause a issue which leads to a premature rebuild or other costs. I appreciate your advice and experience, thanks!

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that's what I took it as - the DPF would plug up. Thanks for the explanation.

That's been posted and if not it's already widely known but nowhere on it do I find the Rotella T high performance mixed fleet sae 40 which I speak of. Do you find it there?

pics taken this am- note that as well: " HD T1 SAE 40" not "T1 SAE 40" ; different than the website- I couldn't find T1 HD SAE 40. The store's label is the same number for both oils, but the bar code from Shell is a different number. Note HD T1 also lists MIAFL- perhaps it's packaged in Miami and the facility there has it's own labeling? Remember I also already posted the greatlakesoil MSDS of the Rotella T High Performance Mixed Fleet oil.

I believe "T" does not stand for multi weight/grade; "Triple protection" seems to indicates that as that phrase is only used on dino based multi weight formulas while "T" in some variation is used on the rest of the Rotella line. With your suggestion I called and the result is posted below.

So I called Shell and got a technical specialist on the line and he told me the Rotella T SAE 40 oil was discontinued over 4 years ago and is not suitable for use as the shelf line is less than four years. He also said all Rotella T1 is "HD" and the marketing dept will sometimes insert that and sometimes not. I didn't ask him about triple protection nomenclature. At least I found out the difference! BTW I called the store and the manager is most likely going to pull the old stock after doing his own investigation.

I didn't see a manufacture date on the Rotella T, nor a expiration date; but I did not buy that oil. Did you see one in the pics I posted and missed? The T1 has a date of 6/14 and it's within the shelf life according to the specialist I spoke with. The store sells plenty of oil and this is the first I've seen of this Rotella T. I'd think it was NOS from the distributor and an aberration as the retailer is quality and service oriented.

Have you ever bought anything which was outdated at a store and if so did you ever go back to that store? ... you sound old and grumpy -have a snickers bar!

The retailer immediately removed the old oil, here's the replacement. Different label again and it does not show the CF-2 rating but instead CF-4 MAN MTU and CAT ???