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  #16  
Old 02-09-2010, 09:12 PM
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Quote:
Originally Posted by layback40 View Post


We have over 20 different vehicles here requiring a range of lubricants. They include cars/pickups (diesels & gassers), trucks, tractors, stationary engines, dozers, scrapers, road graders & non powered equipment. Over the years we have had both Mobil & Shell do lubricant surveys for us. One of the reasons is to allow us to standardize as much as possible the lubricants we use. They both recommended the use of one grease for all (including wheel bearings). They were molly based products.
Referring to a grease as being "molly based" is technically inaccurate. Molybdenum disulfide is an extreme pressure additive which comprises a very small percentage of the overall package.

Likewise, comparing the lubrication requirements of construction equipment to automobiles driven at highway speeds is shortsighted. Exxon, for one, recommends against using their moly EP grease in wheel bearings of any vehicle operated at a speed over 35mph. (Clearly, a company recommending against the use of its product cannot be characterized as "marketing hype.")

For automotive wheel bearings, I have been very satisfied with Exxon Ronex MP. It is also suitable for chassis applications on vehicles which require periodic lubrication.


Last edited by tangofox007; 02-09-2010 at 09:24 PM.
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  #17  
Old 02-10-2010, 12:22 AM
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Mobil, who are now EXXON were one who recommended it.
As a past Professional Engineer with EXXON ( my first employer after university), I am fully aware of the basis for many of their recommendations. I have a number of contacts there.
If you read my post properly you will see the recommendations of Mobil (now EXXON) and Shell covered both road cars ( including 300D's) as well as other equipment.
Would you please provide some details of your professional background so that your comments can have an appropriate degree of merit. Do you have any lubrication specialty? Are you just quoting from the standard publications?
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I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
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  #18  
Old 02-10-2010, 09:44 AM
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Here are a couple of quotes from Exxon regarding their Moly EP type greases (emphasis added):

RONEX EXTRA DUTY MOLY 2 is recommended for high load applications at slow-to-moderate speeds, including applications in the paper, construction, and mining industries, as well as off-highway vehicles operating at 35 mph or less. RONEX MP, with its much lower base oil viscosity of 767 SUS, is designed to meet a wider range of high-speed industrial and automotive bearing applications, including wheel bearings in on-highway use.

Beacon EP 2 Moly is suitable for plain bearings and gears. It also can be used in rolling contact bearings, but is not generally recommended for high-precision rolling contact bearings because of the possibility of molybdenum disulfide building up in the clearances.
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  #19  
Old 02-10-2010, 07:58 PM
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Quotations from marketing tech info is best taken with a grain of salt. If some one has the technical know how to properly interpret information then a different picture emerges. Very few technically competent people will ever just take a few quoted words from a promo sheet on the net and accept it verbatim. Again I suggest that when some one expresses an opinion they need to give some indication of their expertise in the field.
At the end of the day we have some one who has openly provided personal experiences of the use of certain products, has stated where the recommendations to use it came from, has given details of their Professional qualifications & previously provided proof of that V/S no details of back ground, some copy and paste from promo sites on the net not even details of what cars they own.
Unfortunately I have seen this sort of thing before on here.
I will continue to use the products that are recommended to me by competent properly educated and trained professionals.

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
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