high end on R syn 5/40

[IH3444]

My understanding is that multi-viscosity oils do not thicken as oil temperture rises. A 5w-40 oil, is an oil that has flow as a 5w oil when cold, but also protects as a 40 weight at operating temperture. A 15w-40 oil has flow as a 15w at cold tempertures, but it also protects as a 40 weight at operating tempertures. The "w" denotes both as winter oils, with additives which improve their cold temperture flow ability.

Once again.......
Lifted from another thread, in the Ferrari forum.....don't know if it's true or not, reads interesting.....

"A bit of information directly from a shell engineer. Note that at the end he states that the base stock in Rotella T 5w-40 synthetic (available at walmart for $14 a gallon) ,Shell Helix(Ferrari dealer $16 a quart), and Ferrari's formula 1 oil cocktail is the exact same thing minus different additives. Is the highly rated Rotella T synthetic 5w-40 another credible alternative to overpriced Helix? After all, the Rottela t does meet and far exceed all current testing standards (SL, Sj, etc) not to mention an incredible viscocity index of 178 degrees c (mobil 1 0-40 is 168 c).

"It is true that ROTELLA T Synthetic is Group III (not PAO) based, but you must keep in mind that not all Group III base oils are created equal. ROTELLA T Synthetic is made with Shell's XHVI base oil, which unlike other Group IIIs does not begin as distilled crude oil, hence of all Group III base oils, XHVI is truly the only one that can legitimately be called "synthetic." XHVI is a wax isomerate, meaning that it is made from the slack wax removed from distilled crude in normal solvent dewaxing. This slack wax is catalytically transformed (isomerized) and hydrofinished into a chemically pure base oil which rivals PAO in virtually every category. There are other "synthetic" oils out there based on Group III, but Shell's is unique in that it uses XHVI base oil. Chevron and Petro-Canada produce Group III base oils that come close to XHVI, but even though these oils are all hydroprocessed and utilize the same type of isomerization technology employed in the making of XHVI, they are not the same thing. Only XHVI is made from pure petroleum slack wax and its CAS number is 92026-09-4. The CAS number for the more typical all-hydroprocessed Group III base oils is 64742-54-7. If you want to know what your "synthetic" oil is made from, take a look at the MSDS and look for these numbers. (The CAS number for PAO is 68037-01-4).

In brief, don't be so quick to dismiss Rotella T Synthetic as just another "synthetic pretender." It's made with the same base oil as Shell's Helix Ultra, and everytime you see Ferrari win a Formula 1 race, that's the oil in the engine.""

 

[big bubba]

Thank you gentlemen for the more than informative info on my dyno/ synthetic debate on my new 7040 kubota. At 150 hrs now, and an excellent breakin period with the cold weather approaching, I have decided to stick and stay with Rotella 5/40 synthetic. (R 15/40 conventinal during break in). My main intent here was to confirm it's properties in high summer heat compared to the dyno version....now how about my next challenge TO GIT THEM WILD HOGS TEARING UP MY HAYFIELDS! I've got a few of my redneck neighbors working on that and when we get one, you're invited to the hog roast if you're in the area. thanks again bb

 

[saparks10]

Where might you have heard that Rotella synthetic is group 2? By the way, group 2 base stocks are NOT synthetic. Synthetics start at group 3.

My apologies diesel power, i was referring to the conventional rotella 15w-40 mentioned in post #5. If the laws have not changed i believe the manufacturers are not required to specify what percentage of group 3 oils are synthetic and what percentage is not synthetic. Therefore 80% of a group 3 oil can be other than synthetic, but still be sold as a group 3. Of course as long as the VI is greater than 120. Is that still correct? Or have the laws changed.

 

[saparks10]

Thank you gentlemen for the more than informative info on my dyno/ synthetic debate on my new 7040 kubota. At 150 hrs now, and an excellent breakin period with the cold weather approaching, I have decided to stick and stay with Rotella 5/40 synthetic. (R 15/40 conventinal during break in). My main intent here was to confirm it's properties in high summer heat compared to the dyno version....now how about my next challenge TO GIT THEM WILD HOGS TEARING UP MY HAYFIELDS! I've got a few of my redneck neighbors working on that and when we get one, you're invited to the hog roast if you're in the area. thanks again bb

I wouldn't mind helpin ya out with the hogs as well if i lived a little closer. I've never taken a hog with my bow.

 

[big bubba]

Mr sparks: you are welcome anytime.....what about mixing some of that hog fat w/rotella to slick up them bearings? bb

 

[saparks10]

Mr sparks: you are welcome anytime.....what about mixing some of that hog fat w/rotella to slick up them bearings? bb

LOL. Well, i dunno bout that... You never know though, you might be able to start your own company, they have Hog Wild for fishing, why not Hog Wild Lube.

 

[frank_miller]

My apologies diesel power, i was referring to the conventional rotella 15w-40 mentioned in post #5. If the laws have not changed i believe the manufacturers are not required to specify what percentage of group 3 oils are synthetic and what percentage is not synthetic. Therefore 80% of a group 3 oil can be other than synthetic, but still be sold as a group 3. Of course as long as the VI is greater than 120. Is that still correct? Or have the laws changed.

This is nothing new and has been talked about for like 4 years!

 

[saparks10]

This is nothing new and has been talked about for like 4 years!

Thanks for the post frank.

 

[frank_miller]

Thanks for the post frank.

No problem, search funcation works great!

 

[KICK]

Ahhh, the case for a 40 weight oil...
Is there one ?
QUOTE]


only if your old and stubborn

or have an old worn out 2 stroke detroit