centexlimited

interesting for all the work he did. Must like carpentry. If a car needed oil I just found some in the garage. It may be
for the lawnmower, other yard stuff. Didnt matter if was the Corvette, oil was oil to top it off. Maybe if keep a car
a long time means something, but no longer than I do, no concern. But cool video

A Guy

One of, if not the only, oil designed specifically for gas trucks. Also passes all major truck brand requirements - including Fords WSS-M2C946-B1.

Good little read right here:
https://rotella.shell.com/en_us/prod...-sellsheet.pdf

Shell is also known for making some of the best diesel truck oil for many years now.

Old Grey Mule

I think Rotella is a diesel engine Bro fad and Shell is trying to take advantage of it's popularity for the gas engine truck Bros. The same oil is specified for the 1.5 eco car engine as the 3.5 eco truck engine.

lawndart

Yes, Ford full syn and also the leading 0W-20 oils would be applicable if you were to expand this test.

Napalm

FIrst off to the OP - thanks for the effort and you're partially on to something, but also keep in mind some of the tests for oils are well documented ASTM standards. So any Spec listed oils is tested to a number of cases and pour testing is only one of the criteria.

As far as the mistrust of the manufacturer why then did you bother buying the ford product? or any other maker for that matter. Having worn that hat I will tell you the motorcraft spec oil for your engine is plenty good enough out to warranty and then some. Nothing wrong with buying better oil for the car - and most full synthetics would meet that description. Changing the viscosity I would not recommend unless you were moving up a value or 2 in the hot summer - and going back to stock in the fall,winter,spring. Unless you live in minnesota or something where months at 0 or below would make me consider a lower viscousity oil for winter and stock oil for spring,summer, fall. But I'm talking hard extremes here.

Now if you were to do a used vs new I think you'd notice it would be quite similar.

And if you want another easy to replicate test - there is the oil film cling and thickness test. This is what some people are on about. Today's oil will stick on the metal for longer than most people realize. If you start the engine every day - there will be oil on all metal parts that move upon next start. 0 degrees F, 100 degrees F - every time. But test that. I forget what's used but I think it is a tool steel blank 4340? dipped in the oil for one hour - pulled out and tested for film thickness after 5 minutes and then again every 30 minutes up to 24 hours. Illustrates just how well the oil stays behind.

Also SAE testing pointed out that for most modern engines - even with the VVT's and the turbos and etc - it takes over 6 hours after the engine is shut down for the bulk of the oil to return to the oil pan. - this same test is the reason you see more and more manuals and placards stating that you need to wait 15 minutes before pulling the dipstick since it will show low. Granted the more complicated the engine the worse it is - but even a pushrod V8 (LS3) fell into the same requirement.

1954StevieB

Nice study. I would like to see how the different synthetic Brands behave at the same viscosity compared to Pennzoil 5w-20 synthetic.

Also, the Pennzoil Synthetic appeared thicker(slower draining) at the 151F temp. I would think that would benefit the engine wear.

Jfalat

Summers22

iTrader: (2)

I have read numerous reviews stating exactly this. Quieter at idle and much smoother at idle as well as a smoother feeling engine while driving. Interesting.

elptxjc

What?!? You need to ease up on the meds brother. Ha ha.