Y BLock Oil
........I just spoke with the folks at Hughes Engines Inc regarding the "Extreme Pressure Oil Additive." As a point of clarification here is what I was told. This additive will work with any motor oil and provides the protection that the CI-4 rated oil used to provided to motors like the Y Block. I was also told that the OLDSMOBILE, MOPAR and FORD guys are using it. One pint will treat 5 quarts of oil.
Direct from the Hughes WEBSITE: (HUGHES WEBSITE LINK)
Save Those Flat Tappet Cam Lobes!
Over the past 10 years or so all cam manufacturers have seen an increase in flat tappet cam failures, particularly in the high performance arena. We have spent close to a year researching oils and additives to try and find a product that could eliminate this problem. We have found it! Hughes Engines Extreme Pressure Lubricant is a state of the art additive package that is compatible with standard (mineral based) oils or synthetics. To complement this highly specialized additive package a proven frictional modifier, Micron Moly® is further blended into the oil treatment. Micron Moly® is a liquid soluble type of moly that plates to the metal surfaces of the engine. Once plated, the moly forms a long lasting lubricant film which prevents the metal surfaces from coming into contact with each other. By preventing metal to metal contact, damaging frictional wear is eliminated, which leads to less downtime and longer equipment life. This additive should be used with all flat tappet camshafts. We suggest using this with your break-in oil and at every oil change. One pint will treat up to 5 quarts of oil. Order in cases of 12 pints for only $6.99 a pint. Case lot purchases must be made by phone. Be sure and ask for the case price!
Hopefully this will help others too.
BLP
But, why would I want to use an oil that required an after market additive when I could just use something like Chevron DELO 15W40, Shell Rotella 15W40, or other well known diesel type oil that most of the camshaft manufacturer/grinders suggest using anyway?
I am always suspicious of companies that hawk their own branded secret sauce snake oil . They do not make the stuff. They just put their name on it and sell it (at a profit ...as it should be of course...)
Most of the Cam manufacturers like Comp/Isky/etc, usually tell you 'what' to use not 'whose' to use. Since they usually aren't selling the "stuff" or telling you where to buy it (as in GM EOS) I tend to believe them.
Just another worthless opinion on my part....take it for what it's worth!!
I bought several gallons of the old Rotella CI4 before the inventory was gone. Just noticed in today Tractor Supply they still have some of their own brand w/ CI4.
TC
Flat tappet cams have been failing at an alarming rate lately. We dig into what causes these failures, how to fix them and how to prevent future failures. ( CLICK here for Article Link)
BLP
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Q: I have an older Gasoline engine from 1956. I am looking for a 30W Single Grade oil that meets CI-4 Ratings. The oil that was previously in this motor was a 30W non-detergent oil. Any recommendations for a Rotella / Shell product solution?
A: The latest API specifications for diesel engine oils pertain specifically to multigrade types, so you won't find single grade oil that meets CI-4. In addition, all API specs beginning with SC and CD (including CI-4) are for detergent oils. If you require non-detergent oil, we don't currently sell a product for your application.
If you switch to detergent oil, you could use Shell Rotella T Oil SAE 30 - with API classifications CF-2/CF/SH, it would provide excellent lubrication performance. However, since you've been running non-detergent oil, it WILL clean up the engine, which may or may not be a good thing. At the very least, if you switch, you should monitor for potential screen or filter plugging, and perhaps shorten drain intervals for a time.
Thank you for your interest in Shell Rotella Products!
Regards,
Edward Calcote
Staff Chemist, Shell Lubricants US Technical Information Center
Rotella
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So, I am considering switching to a 15W40 Rotella T Heavy Duty Detergent Oil or the Shell Rotella T Oil SAE 30 - with API classifications CF-2/CF/SH and using the Hughes Engine Oil Additive mentioned in previous posts......Since my motor is not a racing motor, that I know of, and is most likely going to be used as a driver I'm leaning to the 15W40.
BLP
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I don't know what we should do except maybe put rollers in out Y-blocks or find a source of zddp or a substitute.
I'll stick with Rotella or Delo until it's all the new stuff and I suppose I'll have to use the dreaded snake oil additive suggested by Comp Cams Hotrod mag, Crane Cams and others...
http://www.compcams.com/information/...chBulletin.pdf
If you are going to switch any engine to a detergent oil after using a non-detergent. Make sure it's clean first or you may destroy it quickly. Think about a piece of sludge that breaks off somewhere in an oil pressure port feeding a main or rod bearing.....starving that bearing and seizing it, spinning it and then.....breaking it (the rod!)
Y-blocks were never "spec'd" to run with non-detergent oil. Detergent oils were available in the fifties. That's one of the reasons you need a filter on the y-blocks...detergent oil keeps the "stuff" in suspension so the filter can grab it as it goes by.
If I got an engine that someone told me was only ran on non-detergent oil I'd plan to take it apart.
I run 15w40 Rotella or Delo which ever is cheapest, in everything I own.
Oh boy! An oil thread....now we can all get emotional!! (this has NEVER happened!!)
Cheers,
Rick
I bought several gallons of the old Rotella CI4 before the inventory was gone. Just noticed in today Tractor Supply they still have some of their own brand w/ CI4.
TC
I had done a web search about the subject a few years ago and found a pdf file about some research done by a Texas university tribologist. He had looked at the surface of a camshaft using a scanning electron microscope and found that the ZDDP minus the
Zinc had bonded to the Iron Oxide on the suface, leaving a fishscale-like layer on the cam. The subject of his research was finding a substitute for ZDDP because the Phosphorus in the ZDDP was damaging to catalytic converters. At the time of the publication, they had not yet found a better lubricant for that application.





