![]() ![]() WRT to the Mobil DTE specifically, there should be no problem whatsoever for > hydraulic oil whereas other companies either haven't bothered, or haven't > engineers at Pentosin managed to reduce the effect of temperature on their > G002000 (at least no oils that I have found yet). > benchmark and likely why no other oils "meet or exceed" the specs of > whose viscosity changes less over a temperature range. > understanding is that a higher viscosity index (VI) indicates a fluid > the effect of temperature change on the viscosity of a fluid. > The 'magic' of G002000 appears to be the viscosity index which indicates > Maybe I should have stopped right there, but I didn't as I was curious. > I did not find 1 single manufacturer who cross referenced to G002000. > using Mobil XXXNNN because they are the same thing. ![]() > tells you to use only product CAT NNXXXNN, but there would be no harm in For example Mobil XXXNNN meets or exceeds the requirements > reference the spec's on their products, to the spec's from other > In my research I found that virtually all oil manufacturers cross Those viscosity figures now make sense to me, thanks to info from the web > point greater than -60C, a viscosity index of 340, viscosity of less than > You must agree that you don't need G002000. > website) They labeled this product G002000. > range, as I found out thanks to other listers), viscosity of less than > 340 (which means it will not change viscosity much over a given temp > flash point of 130C, Pour point greater than -60C, a viscosity index of > Audi spec'd a fluid that is mineral based, with a density of. > based on the requirements of the system components built by ZF, Girling > Audi specified certain qualities for the hydraulic oil for their systems > better for the experience as I have educated myself. Even if I don't find the "Shangri La of hydraulic fluids" I am > In the process I have learnt a lot about hydraulic systems and oils in > why is the Audi spec'd fluid SO expensive? Audi/VW states that 7.1 and 11S can be mixed if necessary but we suggest draining and flushing the system if you are changing from 7.1 to 11S*** ***Note - this is currently sold as part # G00200 by Audi/VW as of 1990, replacing Pentosin CHF7.1 The CHF11S is correct for Audi/VW 1990 and later models, while Audi/VW 1989 and earlier models can use either 7.1 or 11S although 11S is recommended. ![]() Should not be mixed with ATF fluids or other power steering fluids. This synthetic fluid is correct for many later models which specify synthetic fluid. ![]() Pentosin CHF 11S Synthetic Hydraulic Fluid - Fully synthetic hydraulic fluid for steering and central hydraulic systems. 1989 and earlier models can use either although the 11S is recommended. As of 1990 Audi/VW is selling Pentosin CHF11S as their part # G002000. ***Note - this was sold as part # G00200 by Audi/VW through 1989. Should not be mixed with ATF or other fluids. Pentosin CHF 7.1 Hydraulic Fluid - Special mineral based hydraulic fluid for use in power steering, central hydraulic and suspension level control systems. ![]()
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