ATF v Gear Lube
ATF v Gear Lube
(OP)
Has anyone done load and wear tests on ATF vs. conventional and synthetic gear lube lately? I have been using ATF in gearboxes for 40 years (racing applications without mfgr. approval) with NO failures due to oil problems and I would like to know of any research in this area, particularly with respect to the newer syn. oils.





RE: ATF v Gear Lube
Kinematic Viscosity @ 100 Degree C, cSt (ASTM D445)
15.7 vs 7.5
Kinematic Viscosity @ 40 Degree C, cSt (ASTM D445)
113.5 vs 36.0
Viscosity Index (ASTM D2270)
146 vs 182
Flash Point Degree C[F] (ASTM D92)
198[338] vs 222[432]
Fire Point Degree c[F] (ASTM D92)
216[421] vs N/A
Poor Point Degree C[F] (ASTM D97)
-46[-51] vs -56[-69]
Brookfield Viscosity @ -40 Degree C[F] cP (ASTM D3829)
35,000 vs
vs -10C = 465
-20C =1030
-30C =2505
-40C =7150
Noack Volatility % weight loss (g/100g) (DIN 51581)
11.4 vs 10.8
FOUR BALL WEAR TEST scar diameter in mm
(ASTM D4172B: 40kgf, 150-Deg C, 1800-RPM, 1-Hr)
0.40 vs
(ASTM D4172B: 40kgf, 75-Deg C, 1200-RPM, 1-Hr)
vs 0.40
Lubricants are designed and formulated for their applications and while experimentation is up to the individual caution is advised...
Have A Fine navy Day
RE: ATF v Gear Lube
RE: ATF v Gear Lube
Send me your Snail Mail Address for some additional information that will really surprise you...
Meanwhile Check This Military Maintenance Secret Out
Virtally Eliminate Passeneger Vehicle Oil Changes Forever
100,000-Mile and BEYOND Synthetic EXTENDED Oil DRAIN Intervals
By-Pass Filtration
http://enviro.nfesc.navy.mil/p2library/cgi-bin/p2h_datasheet.cfm?itemID=105
Lubricant Analysis
http://enviro.nfesc.navy.mil/p2library/cgi-bin/p2h_datasheet.cfm?itemID=107
Synthetic Motor Oil
http://enviro.nfesc.navy.mil/p2library/cgi-bin/p2h_datasheet.cfm?itemID=108
Tribologist@military.com or Tribologist@americainter.net
RE: ATF v Gear Lube
RE: ATF v Gear Lube
Rod
RE: ATF v Gear Lube
This alls add up to a very useful alternative to conventional gear oil. If an ATF is really too thin, a 5W-30 engine oil or a modern synthetic SAE 75W-80W gearbox oil might give the extra load carrying capacity you need.
RE: ATF v Gear Lube
I have also been using engine oil in my British cars for as long as I can remember (with the exception of Ford/Lotus UK in which I use ATF). The 1963 Austin/Cooper I am building currently is an extreme example of engine oil in the gearbox.(For you who are not familiar with the Mini, the engine AND gearbox share the same oil)
I found, in addition to MB, Ford uses ATF in its BW T-5 gearboxes. Most likely, it is used by other manuf.
Rod
RE: ATF v Gear Lube
DA Wallace, VP
Technology
www.bioblendlubes.com
RE: ATF v Gear Lube
RE: ATF v Gear Lube
Engine and gearbox share the same oil. Good concept.
RE: ATF v Gear Lube
MadJac---"good concept"---Only if you like these small, compact little pocket rockets. It is still quite innovative in concept but "good" just doesn't drip off the tongue. To race my little Mini Cooper requires a great deal of effort in keeping the oil cool and clean. Air in the oil does nothing for cooling or lubrication of the bearings. Having said that, there are few automobiles on the market that can equal a hot little Austin Cooper S for driving FUN!!!
Rod
RE: ATF v Gear Lube