Another Rotella foam thread

I know people that run T6 in motorcycles, they rev the crap out of them without issues. I think Rotella has to be within foaming specs, ????
 
I know people that run T6 in motorcycles, they rev the crap out of them without issues. I think Rotella has to be within foaming specs, ????
Very high output / CC, very high RPM, gearbox thrashing the oil and all is fine….
But small block Chevys are foaming themselves to death on the same oil?

I’m confused…you?
 
3,600RPM? The foaming issue is more relevant to engines operating at twice that, and with MUCH higher power density. These anecdotes of "well, it didn't 'splode my Honda GV160 and I cut lots of grass, so this means the problem doesn't exist" obliterate the necessary nuance that one needs to be aware of to properly understand and qualify the criticisms.
Guilty as charged. I've often used my own experiences as being a benchmark for success, and therefore, would like to apologize, to the great members of this forum for those foolish responses.
 
I sent an email to Pennzoil and asked if they had any oils for a flat tappet sbc race engine, they recommended Rotella t4 15w40 lol. not saying it's right but its kinda funny that they recommended that.
I am unfortunately not surprised that the customer service guy/gal made that recommendation, lol.
 
I know people that run T6 in motorcycles, they rev the crap out of them without issues. I think Rotella has to be within foaming specs, ????
It not passing the foaming spec was what initiated one of the conversations on here. However, it was noted that, with batch-to-batch variation taken into account, it likely, overall, meets the spec. Shell simply isn't putting in the effort (or expense) to make it exceed the requirements of the spec, which, given the price point and intended applications, isn't surprising. VR-1, which was tested at the same time, readily bested the spec, which, given this product's intended applications, also isn't surprising.
 
A certain oil blogger that most of the cool kids on BITOG has blasted as having incompetent methodology in his testing, among other things, consistently ranked Rotella very low in his tests, all while bros were recommending it as a flat tappet oil, Subaru elixir, and motorcycle oil. So there is that. Adds an interesting data point to both controversies in my opinion…
 
A certain oil blogger that most of the cool kids on BITOG has blasted as having incompetent methodology in his testing, among other things, consistently ranked Rotella very low in his tests, all while bros were recommending it as a flat tappet oil, Subaru elixir, and motorcycle oil. So there is that. Adds an interesting data point to both controversies in my opinion…
Where I live - a 1500 is a car - a 2500 is a weekend tow vehicle - and the 350/3500’s are doing the work … Yep, so many diesels that the Mobil 1 Express has a Rotella sign on the front …
Asked the owner what he uses in his DMax = “Delvac - but you would not believe the Rotella following” LoL …
Just nodded. 😷 That’s what it goes in !
 
Rotella should pull Jaso M off the bottles and spec sheets. One wonders why it’s still there, giving hope and confidence to so many, still. Crime of the century, perhaps?
 
Doesn’t help that some versions have/had little pictures of motorcycles, semi’s, tractors, cars, and trucks right on the bottle. Heck maybe even a chainsaw🤣
 
A certain oil blogger that most of the cool kids on BITOG has blasted as having incompetent methodology in his testing, among other things, consistently ranked Rotella very low in his tests, all while bros were recommending it as a flat tappet oil, Subaru elixir, and motorcycle oil. So there is that. Adds an interesting data point to both controversies in my opinion…
Harks to the "even a broken clock is right twice a day" phrase. I think the criticisms of his methodology are reasonable, the test lacks the resolution necessary to make the sort of granular categorizations he makes. It's not unlike folks trying to bench race oils by observing minute variances in PPM on uncontrolled UOA's ;)

AMSOIL of course used to use the 4-ball wear test for a similar purpose. They've thankfully moved-on from that, now using modified versions of standard test sequencies.
 
HPL apparently tried whisking one & it didn't meet the foaming limits from that single sample. However, Dave stated, while this one didn't pass the test, he surmised the overall average would pass the test. I think Mr Speed is well aware of that but it sounds like you've put in a request for him to do a "Video" on it.
I missed this test from HPL. So essentially, the sample hardly passed?
 
I missed this test from HPL. So essentially, the sample hardly passed?
I don't remember exactly as it's been a minute. Thought I saw it in a LSJr video when he visited HPL. I talked to Dave, on the phone, about it a few weeks ago. Rotella passes the Aeration & foaming tests as it's a valid licensed API & OEM oil.
 
Is it foam or suds? :ROFLMAO: If it had Valvoline Restore and Protect in the name, we'd be calling those "scrubbing bubbles"!

Its funny, the hero of BITOG and villain of BITOG currently live in my two Ford trucks.
 
I'll have to look into the oil level sight glass on my 2001 ATV more carefully while rev bombing it, but going from memory, RT4 does carry a few bubbles below the surface when cold , but once warmed up, there might be a couple on the surface, but none below.
It has a good size 3.5L sump for whooping 280cc of engine, plus a whole bunch of gears and clutches, so I'm very sure its never pumping aerated oil around.
I'm getting near 20 yrs of using it in equipment like single cyl B&S engines that are much older than that, and there hasn't been any oil related issues. Seems to be good enough HST fluid as well for the the lawn tractor, and gear box oil for the YZ250.
I suppose if you have a high performance dirt bike with a 1L combined sump and 13k redline, you might want to be a bit careful with oil foaming. Our air cooled CRF honda's seem to be fine on a 10hr OCI with it, as they don't have oil filters, so just keeping a decent cleaner oil in there works well I think.
I like it because its cheap by the pail, and I'd rather have low hour and cleaner RT in an engine, than expensive oil with high hours.
 
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