diabolo a écrit :Et il serait peut être plus adapté de parler de niveau de boite en poids plutot qu'en volume, puisque le volume change avec la température mais pas le poids!
Remarque très pertinente
Sinon, pour les spécialistes, qu'est-ce que vous pensez de ça ?
Source : site officiel de General Motors
http://www.gm.com/vehicles/innovation/powe...ease_30NO07.doc
Je recopie le contenu au cas où le lien venait à disparaître. En substance, ça dit que la nouvelle spécification Dextron 6 remplace doutes les autres huiles de transmissions homologuées GM précédemment.
General Motors DEXRON®-VI Global Service-Fill Specification
During early 2005 General Motors released a newly developed automatic transmission fluid (ATF) for the factory fill of all GM Powertrain stepped gear automatic transmissions. The new fluid provides significantly improved performance in terms of friction durability, viscosity stability, aeration and foam control and oxidation resistance. In addition, the fluid has the potential to enable improved fuel economy and extended drain intervals. Since the performance of the new fluid far exceeded that of the DEXRON®-III service-fill fluids available at the time it became necessary to upgrade the DEXRON® service-fill specification in order to ensure that similar fluids were available in the market for service situations. This latest upgrade to the service- fill specification is designated DEXRON®-VI.
Since General Motors introduced the first ATF service-fill specification in 1949 it has been periodically necessary to upgrade the specification. This upgrading process ensures that available service fill fluids are of an appropriate quality for use in transmissions that have been designed around the factory fill fluid performance. It should be noted that, as with previous upgrades, DEXRON®-VI fluids are designed to be backward compatible with earlier transmission hardware. More importantly, earlier type fluids are not forward compatible with transmission hardware that was designed to use DEXRON®-VI fluid, i.e. DEXRON®-III is not compatible with the most recently designed transmissions, and the use of these earlier type fluids could result in transmission damage. All current calibrations and certification tests are now conducted with DEXRON®-VI ATF. DEXRON®-III fluids should not be used for these applications where the owners manual recommends the use of DEXRON®-VI. GM does not license or support obsolete ATF specifications or the use of fluids that are being marketed against cancelled specifications.
All DEXRON®-III licenses expire at the end of 2006 and will not be renewed. Beyond that date GM will only support the use of DEXRON®-VI fluids for use in Hydra-Matic transmissions. Fluids sold in the market after that date bearing claims such as “suitable for use in DEXRON®-III applications” or similar wording should be avoided. DEXRON®-VI licensed fluids are fully backward compatible and can be used in all applications covered by earlier GM ATF specifications.
The use of unlicensed fluids and/or non GM approved aftermarket additives may prove detrimental to transmission performance and void warranty coverage.
There is a published list of GM-approved brands of DEXRON®-VI (see page two of this release). This list represents the companies who have conducted the appropriate testing and received GM approval. Company name, license number, and brand name are shown. This list will be updated on a regular basis as more approved products are added.
DEXRON®-VI Service Fill Approved Fluids
CompanyLicense NumberTrade Name
Advanced Lubrication SpecialtiesJ-60155Advantage DEXRON®-VI
Allegheny PetroleumJ-60152Altra DEXRON®-VI Transmission Fluid
Amalie Oil CompanyJ-60156Amalie DEXRON®-VI Synthetic ATF
Amalie Oil CompanyJ-60156Wolf's Head DEXRON®-VI Synthetic ATF
Amalie Oil CompanyJ-60156Xcel DEXRON®-VI Synthetic ATF
American Agip Co. Inc.J-60306 Agip DEXRON®-VI ATF
BP Lubricants USA, Inc.J-60309 Castrol DEXRON®-VI ATF
Cam2 InternationalJ-60158tbd
CAM2 Oil ProductsJ-60327CAM2 Synthetic ATF DEXRON®-VI
CAM2 Oil ProductsJ-60329CAM2 Synthetic ATF DEXRON®-VI
CarquestJ-60323Carquest DEXRON®-VI Full Synthetic ATF
Chevron CorporationJ-60005Chevron ATF DEXRON®-VI
Chevron CorporationJ-60005Havoline ATF DEXRON®-VI
Chevron Products CompanyJ-60308 Chevron ATF DEXRON®-VI
Chevron Products CompanyJ-60308 Havoline ATF DEXRON®-VI
Chevron Products CompanyJ-60336Chevron ATF DEXRON®-VI
Chevron Products CompanyJ-60336 Havoline ATF DEXRON®-VI
Citgo Petroleum CorporationJ-60159tbd
Citgo Petroleum CorporationJ-60317 CITGO TRANSGARD DEXRON®-VI
ConocoPhillipsJ-60004ConocoPhillips Company DEXRON®-VI ATF
ConocoPhilipsJ-60004Kendall Motor Oil Company DEXRON®-VI ATF
ExxonMobil CorporationJ-60002ExxonMobil IMP 6544
ExxonMobil CorporationJ-60002Mobil DEXRON®-VI ATF
Fuchs Petrolub AGJ-60310 TITAN ATF 6000 SL
GMSPOJ-60301 GM Vehicle Care DEXRON®-VI ATF
GMSPOJ-60301 AC/Delco DEXRON®-VI ATF
Gulf Oil InternationalJ-60304 Gulf DEXRON®-VI ATF
Gulf Oil InternationalJ-60311 Gulf DEXRON®-VI ATF
Hicks Oil Inc.J-60326Formula 500
Idemitsu Lubricants America CorporationJ-60332tbd
Isuzu Motors America, Inc.J-60333Isuzu Automatic Transmission Fluid DEXRON®-VI
Kuwait PetroleumJ-60314 Q8 Auto D VI
Lubricating Specialties CompanyJ-60322 Unitran DEXRON®-VI
Mainlube Superior Maintenance LubricantsJ-60334Mainlube 161
Morris LubricantsJ-60324Morris Liquimatic DS J-60324
Northland ProductsJ-60316 Northland DEXRON®-VI ATF
PDVSA Deltaven S.A.J-60315 TRANSFLUIDO SINTEICO DVI
Penrite Oil Company Pty LimitedJ-60302 Penrite ATF DX-VI
Penrite Oil Company Pty LimitedJ-60312 Penrite ATF DX-VI
Petro-Canada LubricantsJ-60001Petro-Canada DEXRON®-VI ATF
Pinnacle Oil, Inc.J-60321National DEXRON®-VI ATF
Pinnacle Oil, Inc.J-60321Marathon DEXRON®-VI ATF
Pinnacle Resources, Inc.J-60320 Multipurpose DEXRON®-VI ATF
Raloy LubricantesJ-60335tbd
Ravensberger Schmierstoffvertrieb GmbHJ-60331RAVENOL DEXRON®-VI
Schaeffer Manufacturing CompanyJ-60325Schaeffer DEXRON®-VI ATF
Shell LubricantsJ-60307 A/C Delco DEXRON®-VI ATF
Shell LubricantsJ-60307 Quaker State ATF DEXRON®-VI
Shell LubricantsJ-60307 Pennzoil DEXRON®-VI
Shell LubricantsJ-60154A/C Delco DEXRON®-VI ATF
Shell LubricantsJ-60154Quaker State ATF DEXRON®-VI
Shell LubricantsJ-60154Pennzoil DEXRON®-VI
Sinopec OilJ-60006XunDong ATF VI
SK CorporationJ-60003ZIC DEXRON®-VI
Smitty's SupplyJ-60153Super S
Smitty's SupplyJ-60153Sure Guard
S OilJ-60007tbd
Superior LubricantsJ-60328Tuxton DEXRON®-VI ATF
SYNECO SpAJ-60338tbd
Tianjin Idemitsu Lube Co. Ltd.J-60337tbd
Total LubrifiantsJ-60330tbd
Universal LubricantsJ-60157Universal DEXRON®-VI
ValvolineJ-60151Valvoline ATF DEXRON®-VI
ValvolineJ-60319Valvoline ATF DEXRON®-VI
Valvoline (Australia) Pty LimitedJ-60313 Valvoline ATF DEXRON®-VI
Warren Oil CompanyJ-60318COASTAL DEXRON®-VI
Warren Oil CompanyJ-60318WARREN DEXRON®-VI
Warren Oil CompanyJ-60318LUBRIGUARD DEXRON®-VI
Warren Oil CompanyJ-60318SERVICE PRO DEXRON®-VI