I haven't used this oil yet, but from the analysis I found online, looks to me a lot like a 50 weight Rotella T5, and had some good internet reviews so I bought myself a jug of this. It'll be in my engine within the next two weeks.
https://www.zoro.com/mystik-diesel-engine-oil-15w-40-synth-blnd-2gal-625776002078/i/G3376751/feature-product?gclid=EAIaIQobChMIhoORmp2b6QIVAr7ACh2bfgU0EAQYBCABEgJPgfD_BwE
The SDS for this product says, "Mystik is a registered trademark of CITGO Petroleum Corporation"
Mystik is out of Houston Texas. https://www.mystiklubes.com/Product.do?code=663004002
There's been some discussion of that
Mystic Mystik® JT-8® Synthetic Blend Super Heavy Duty SAE 15W-50 over on those
Bob is the Oil Guy Forums. It seems a very well regarded product not only by lots of agricultural, trucker and fleet operator types, but by many bikers too, including those with clutches more akin to Royal Enfield's later model UCE Bullets, Himis or the new 650s that might normally ask for that clutch-friendly JASO-rated goo to which my old "Iron Belly", with its separate gear box and primary, sloshing with 90 weight gear oil and Type F ATF respectively, is supremely indifferent.
Not that I'm any expert on motor oils, but although many Enfield owners swear by Rotella diesel type oils, my biggest qualm with them until now would be that I'd only ever seen them readily available as 15W-40 or yet thinner blends. The fact that our man "axman88" has found a reasonably economical and "cushier" 15W-
50 blend, just like my User Manual instructs me to use in my "Iron Belly," is
very interesting indeed.
Not that it matters overmuch for newer engines with your hydraulic lifters and electronic bum massagers and what have you, but for my primitive old girl's flat tappets I like to see a healthy "old school" pre-SL rating amount of Zinc additive of 1,500 ppm or higher. In fact, acting on Ace's kind suggestion earlier to these Forums, I add an ounce or two of that
Lucas TB-Zinc Engine Break-in Additive to the
Mobil1 15W-50 Full Synthetic I currently use, which has only 1,200 ppm of zinc in the jug (their similar but far pricier 20W-50 Mobil1 V-Twin blend has 1,750 ppm). That cocktail must be hitting the spot, cause I haven't had to adjust my tappets in nearly two years. I check regularly, but those cams, pushrods and whatnot just aren't showing any wear, and I've put over 10,000 miles on her.
It's hard to find solid numbers on the Mystic JT-8 15W-50, but I did find a posting on a
Ford Trucks forum here about a fresh-from-the-jug lab test done of their 15W-40 blend, which probably has a very comparable if not identical additive package to their 15W-50:
Mystic JT-8, the numbers
Here are the numbers as they break down in their virgin sample form:
Boron- 178
Magn- 25
Calcium- 2802
Phos- 1515
Zinc- 1755
Moly- 128
Mystic JT-8 15w-40.
For those of you that are running the older 385s, FEs, Y blocks, etc. here's yer oil. No wonder it does so well in my FEs. With the boron and moly content and the higher than SM oils ZDDP, this is one killer oil for the older engines. I know we have a member that uses it but his name escapes me, is it rustbucket? No. Is it..........................
Anyway, he will stand up for sure after reading this. For the reader in all of us, here is the MSDS as Citgo sees it. Note TBN of 12.0, viscosity index, and flash point.
http://www.docs.citgo.com/msds_pi/591239.pdf
Evidence suggests that my old Iron Belly's pretty content with its diet of Mobil1 and Lucas goop, but you devotees of Rotella and other better-cleansing dieselly spews, especially those flogging their rides through warmer climes, might owe "axman88" a vote of thanks for his
Grand Mystic Discovery and maybe give that thicker stuff a whirl, especially if you're in the States where it's readily available.
Here's a vendor locator to maybe beat that shipping.
Topic: engine oil (Read 5115 times)