hi, next job,after reading everything i can find i,m still not sure what fluid to use in the acs system,psf14315 dont appear to be availlable any where ,it says dexron 2 or 3 is ok but says non-synthetic but i thought dexron was semi,at moment the fluid is red ithe ace and green in pas can anyone advise what i should use thanks for help
ace fluid
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thebiglad
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It might be useful to understand that all the fluids have one thing in common - they are all hydraulic fluid, in other words the same broad type.
ATF (Automatic Transmission Fluid) is usually marketed by what std it is supposed to be such as Dexron IID or III or the latest VI. Dexron is the trade name that GM used when it first started to conduct tests and it has stuck.
What I'm trying to say it that it doesn't matter too much what colour it is red, green or sky-blue with spots - what matters is that there is enough fluid in.
All the atf's are mixable as well, so just buy the colour you like and top-up.
Dave
Landybandy
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I know the specified one by land rover is called something like cold climate fluid STC 50519 I believe.
discool
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This what the D2 workshop states which no doubt you have seen. So it you believe the ambient temps in your part of the world won't reach -20c then use the Texaco stuff or ATF, which has already been mentioned.
ACE fluid
Where ambient temperature falls below -20° C (-4°F), use only Texaco cold climate power assisted steering fluid PSF 14315. Where ambient temperature remains above -20° C (-4° F), use either Texaco cold climate power assisted steering fluid or Dexron 11 or Dexron 111 non-synthetic fluid.
ACE fluid
Where ambient temperature falls below -20° C (-4°F), use only Texaco cold climate power assisted steering fluid PSF 14315. Where ambient temperature remains above -20° C (-4° F), use either Texaco cold climate power assisted steering fluid or Dexron 11 or Dexron 111 non-synthetic fluid.
sierrafery
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i highly recommend the original PAS fluid despite of it's price cos:
1. i made some research and even if they recommend the ATF where it doesnt get cold there's a difference in density and viscosity between the ATF and the STC50519(and especially in the ACE the density is very important being a high pressure system)...also in all the threads i've read about failed ACE or PAS pumps they all used ATF not the other
2. the recommendation about ATF as alternative afaik is only in the NAS RAVE, in the european one it's only the PAS fluid stated for ACE(attached)... i have no ideea why but even in the NAS RAVE for PAS it's not stated the ATF as alternative
3. according to the maintainance check sheet the ATF must be renewed once at 24 months while the PAS/ACE fluid must be just topped up or i think renewed together with the reservoir at 156K miles
4. i'm not saying that the ATF is not good i just stick to my ideea that the PAS fluid is better for the system
everybody's choice though
1. i made some research and even if they recommend the ATF where it doesnt get cold there's a difference in density and viscosity between the ATF and the STC50519(and especially in the ACE the density is very important being a high pressure system)...also in all the threads i've read about failed ACE or PAS pumps they all used ATF not the other
2. the recommendation about ATF as alternative afaik is only in the NAS RAVE, in the european one it's only the PAS fluid stated for ACE(attached)... i have no ideea why but even in the NAS RAVE for PAS it's not stated the ATF as alternative
3. according to the maintainance check sheet the ATF must be renewed once at 24 months while the PAS/ACE fluid must be just topped up or i think renewed together with the reservoir at 156K miles
4. i'm not saying that the ATF is not good i just stick to my ideea that the PAS fluid is better for the system
everybody's choice though
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when you say the PAS/ACE reservoir should be renewed at 156K miles, do you mean just the fluid in the reservoir or the actual reservoir (the plastic bottle thing)??
I remember seeing this in RAVE, but never quite understood why the reservoir should be changed. Does the plastic get brittle and prone to crack or something?
I remember seeing this in RAVE, but never quite understood why the reservoir should be changed. Does the plastic get brittle and prone to crack or something?
sierrafery
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they say only about reservoir but i can't tell you the reason(check sheet attached)
that's on the back of the maintainance check sheet:
RAVE said:
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