Dal mio archivio ho recuperato quanto segue, è tratto da The Lubrizol Corporation Knowledgee - Ready Reference for Lubricants and Fuels A. Non riesco a trovarlo sul sito attuale. Sono tabelle che con copia/icolla vengono in formato testo
Ho dato uno sguardo veloce alla pubblicazione sulla cavitazione, mi è sembrato di capire che le pressioni ed i volumi in gioco siano ben diversi da quelli che usualmente si generano in un motore Diesel da fuoristrada.
Girando per le strade d'Europa non c'è problema a rimediare oli specifici, cosa ben diversa che nel profondo Ciad.
Sito interessante per completezza di prodotti
Castrol.de La prova oli aggiunti e mai cambiati venne espletata da 4Ruote qualche anno fa,
rinuncio a cercare la rivista messa fra altre centinaia
La storia dell'emulsione olio su F1 (certamente non miscelato ad altri)riguardava l'olio motore nel motore, l'oilo era il primo Agip sintetico, sponsor di Ferrari.
Ready Reference for Lubricants and Fuels
Automotive Gear Lubricants
API GL-4, GL-5 and MT-1 Performance Criteria
Performance API GL-4
MIL-L-2105 API GL-5
MIL-L-2105D API MT-1
Scoring resistance under high-speed shock load conditions CRC L-19* test or FTM 6504T: equal to or better than RGO-105 L-42 test: gear/pinion coast side scoring equal to or better than RGO-110 No requirement
Resistance to gear distress under high-torque, low-speed conditions CRC L-20 test: no tooth disturbance such as rippling, ridging, pitting or severe wear L-37 test: no tooth disturbance such as rippling, ridging, pitting or severe wear No requirement
Corrosion resistance in the presence of water 1. CRC L-13 or FTM 5313.1
2. CRC L-21 — No evidence of rusting L-33 test: no evidence of rusting after 7 days exposure on any working surface; maximum 0.5 sq in. rust on cover plate (1% of surface area) No requirement
Thermal & oxidation stability/component cleanliness No requirement L-60-1 test: 100% max viscosity increase; 3% max pentane insolubles; 2% max toluene insolubles L-60-1 test: 100% max viscosity increase; 3% max pentane insolubles; 2% max toluene insolubles; 7.5 min carbon/varnish rating on large gear; 9.4 min sludge rating on all gears
Antiwear No requirement No requirement FZG (A/8.3/90): minimum 10 stage pass
High-temperature lubricant stability No requirement No requirement Mack Transmission Test T-2180: Equal to or better than reference
Oil seal compatibility No requirement No requirement Similar to ASTM D 471: Polyacrylate — -60 to 0% elongation change, -20 to +5 pts hardness change, -5 to +30% volume change; Fluoroelastomer — -75 to 0% elongation change, -5 to +10 pts hardness change, -5 to +15% volume change
Antifoaming characteristics CRC L-12 test: readings taken immediately after 5 min aeration; Sequence 1 — 23.9°C, 650 ml; Sequence 2 — 93.3°C, 650 ml ASTM D 892: readings taken immediately after 5 min aeration; Sequence I — 20 ml max; Sequence II — 50 ml max; Sequence III — 20 ml max ASTM D 892: readings taken immediately after 5 min aeration; Sequence I — 20 ml max; Sequence II — 50 ml max; Sequence III — 20 ml max
Copper corrosion ASTM D 130: 3b max after 1 h at 121.1°C ASTM D 130: 3 max after 3 h at 121.1°C ASTM D 130: 2A max after 3 h at 121.1°C
Channeling characteristics No requirement FTM 3456.1 Modified: SAE 75, -45°C max; SAE 80W-90, -35°C max; SAE 85W-140, -40°C max No requirement
Compatibility with existing gear lubricants SS&C FED-STD-791 SS&C FED-STD-791 SS&C FED-STD-791
Solubility — measure separated material after centrifuging oil stored for 30 days at room temperature (29.4 ±9.5°C) FTM 3430: 0.25% wt max of original nonpetroleum material in sample FTM 3430: 0.25% wt max of original nonpetroleum material in sample FTM 3430: 0.25% wt max of original nonpetroleum material in sample
Compatibility — same as solubility except mixed 50/50 with each of six reference oils FTM 3440: 0.50% wt max of original nonpetroleum material in sample FTM 3440: 0.50% wt max of original nonpetroleum material in sample FTM 3440: 0.50% wt max of original nonpetroleum material in sample
* Equipment no longer available; impossible to conduct test per original procedure.
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READY REFERENCE FOR LUBRICANTS AND FUELS
AUTOMOTIVE GEAR LUBRICANTS
API GEAR OIL SERVICE DESIGNATIONS
PHYSICAL REQUIREMENTS FOR GEAR LUBRICANTS
API GL-4, GL-5 and MT-1 PERFORMANCE CRITERIA
MIL-L-2105D REQUIREMENTS
MIL-PRF-2105E REQUIREMENTS
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ed inoltre :Ready Reference for Lubricants and Fuels
Automotive Gear Lubricants
API Gear Oil Service Designations
API Classification Type Applications
GL-1 Straight mineral oil Truck manual transmissions
GL-2 Usually contains fatty materials Worm gear drives, industrial gear oils
GL-3 Contains mild EP additives Manual transmissions and spiral bevel final drives
GL-4 Equivalent to obsolete MIL-L-2105 specification; usually satisfied with 50% GL-5 additive level Manual transmissions, and spiral bevel and hypoid gears in moderate service
GL-5 Virtually equivalent to present MIL-L-2105D; primary field service recommendation of most passenger car and truck builders worldwide Moderate and severe service in hypoid and other types of gears. May also be used in manual transmissions
GL-6 Obsolete Severe service involving high-offset hypoid gears
MT-1 Contains thermal stability and EP additives Nonsynchronized manual transmissions in heavy-duty service
Previous
READY REFERENCE FOR LUBRICANTS AND FUELS
AUTOMOTIVE GEAR LUBRICANTS
API GEAR OIL SERVICE DESIGNATIONS
PHYSICAL REQUIREMENTS FOR GEAR LUBRICANTS
API GL-4, GL-5 and MT-1 PERFORMANCE CRITERIA
MIL-L-2105D REQUIREMENTS
MIL-PRF-2105E REQUIREMENTS
[ 20 Maggio 2003: Messaggio editato da: mstis ]