power steering fluid.......

**rick130** · 18th November 2007, 08:58 PM

the OE stuff is Caltex Cold Climate PAS14315 power steering fluid, which is a semi synthetic fluid and is very close to an ATF. I've bought it off a dealer, as it at the time it was only available in 20l drums, but I think that has changed in the last two years.

A Dex II or III fluid is compatible, although I've found most mineral based Dex III's change the feel and increase the groan, etc. compared to the OE stuff.

The closest I've found in performance and feel and should have better high temp performance is Castrol Transmax Z, and it's the same green colour, too.
Any ATF or PAS fluid by Redline, Amsoil, Royal Purple, Neo, et al should be excellent, too.

Changing it involved jacking the front end up, taking the return line off the pump, blocking the port with a 1/2" plastic cap and dropping the return line with a suitable extension (usually a piece of copper tube) into a catch pan, turn the engine on and have someone keep feeding fresh fluid into the reservoir. Turn the wheels to each full lock and hold them there momentarily then back to centre. I rty to flush at least 5 litres through so I know I've flushed all the old stuff and any contaminants out.
Hard off road can really cook the fluid.

**DEFENDERZOOK** · 18th November 2007, 09:57 PM

thats the correct procedure for a proper flush.......a waste of fluid......but a proper flush.......

what do you you think of penrite PAS fluid......?
you know anything about this........or what it is......?

**DEFENDERZOOK** · 18th November 2007, 10:01 PM

Originally Posted by Barra1

Firstly, (gee what AM I doing) I am not having a go at 460Cixy - and I don't know Defenderzook and most likely never will.

I have to comment on Defenderzook's reply to 460Cixy - I know I would have "misunderstood" 460Cixy's reply to Defenderzook's original question - even though it contained a level of swearing which has been very topical of late.

Defenderzook stand and accept your award for patience and diplomacy.

This had the potential to develop into a case where an exponent felt compelled to throw in the towel and leave AULRO - but I reckon Defenderzook's lengthy experience on the site came to the fore.

I'm posting this because I KNOW I would not have been as understanding and tolerant as Defenderzook - and that is not an accusation against 460Cixy - just stating a point.

(Although 460Cixy I reckon you probably think I am having a go at you - I'm not - but I'll wear any grief coming my way).

This is the guts of it.......

Given the events surrounding Ron etc etc. I reckon replies like Defenderzook's should be highlighed as examples of what we should all be working towards.

i may have provoked that answer......if you check the time you may understand i was tired and too buggered to type
too much in the way of a reply......
so it was very brief.....and may have easily been taken the wrong way by anyone......

even me....after i re-read when i was actually awake.....

i dont blame him for his response.......

**460cixy** · 19th November 2007, 01:22 AM

i shouldent have done my lolly too sorry about that.

**rick130** · 19th November 2007, 05:27 AM

Originally Posted by DEFENDERZOOK

thats the correct procedure for a proper flush.......a waste of fluid......but a proper flush.......

what do you you think of penrite PAS fluid......?
you know anything about this........or what it is......?

know nothing about the Penrite stuff as I haven't used any of their oils for about 15 years, but if it is formulated to meet the ACE spec (which is what the Caltex fluid is) use it and be happy.

Pedro and I discussed what, if anything could be substituted in the ACE system a while back as he can get Transmax Z and he's been using that in his ACE system and PAS and been very happy. I use Transmax Z in the Patrol and Landy.

PAS fluids are usually identical to ATF's in terms of viscosities and I believe base oils, they just leave out a few of the additives ATF's normally have and add a few friction modifiers to reduce the groan and squeal. I think they may cut corners a little and cheapen out on the base fluids sometimes, as the newer ATF's (Dex III on and newer Mercon's) really need to be semi-synthetic and good quality mineral oils to meet the anti-oxidation/life specs.

BTW, according to all my books and RAVE the system takes 3.8 litres, which I still find hard to believe, but that's why I use so much fluid in a flush. Anyway, it only happens once every couple of years, so isn't a big cost amortised over the time.

**DEFENDERZOOK** · 19th November 2007, 03:28 PM

Originally Posted by 460cixy

i shouldent have done my lolly too sorry about that.

no stress buddy......no harm done.....

i actually found your reply amusing.....

**DEFENDERZOOK** · 19th November 2007, 03:39 PM

and rick......thanks for all your input......

i think i will give the penrite PAS oil a go.......i had a look on the perite site and that is also what they recommend as well......

and its also my choice of brands.....

**cucinadio** · 21st November 2007, 03:50 PM

Originally Posted by DEFENDERZOOK

no stress buddy......no harm done.....

i actually found your reply amusing.....

"aaaaauuuuuooooohhhhh you guys"

lol

cheers

**98-110** · 3rd March 2008, 11:13 AM

Originally Posted by rick130

the OE stuff is Caltex Cold Climate PAS14315 power steering fluid, which is a semi synthetic fluid and is very close to an ATF.

COMMENT: phoned Caltex re using MTF-94 (gearbox ATF) as a replacement PAS fluid on outback trips; to save carrying another ATF. Tech Helper hinted "yes" but wouldn't commit!!!

He did advise that both MTF-94 and PAS14315(above) are now 'de-listed'. It seems that Land Rover contracted with Caltex for batches of specific lubricants for specific applications in OE vehicles. Once the batches run out, that's it - find another product or buy a new Ford Landy.

QUESTIONS:

What is the 'ACE system'?
I'm looking at PAS because of the squealling noise coming from I guess the drive belt/PS pump bearing area. But if the bearing is lubricated with the PS fluid, it wouldn't be likely to fail (as per oil-lubed wheel bearings). Should mention that the noise happens when the steering is straight ahead, ie the PS is not actually being used, although the pump must be circulating the fluid around the system. Also, I couldn't feel any play at the pulley. So could the noise be coming from some other internal part in the PS pump?
Should PS fluid be changed every 2 years along with coolant, brake, clutch etc etc?

**JDNSW** · 3rd March 2008, 12:02 PM

Originally Posted by 98-110

......
QUESTIONS:

What is the 'ACE system'?
I'm looking at PAS because of the squealling noise coming from I guess the drive belt/PS pump bearing area. But if the bearing is lubricated with the PS fluid, it wouldn't be likely to fail (as per oil-lubed wheel bearings). Should mention that the noise happens when the steering is straight ahead, ie the PS is not actually being used, although the pump must be circulating the fluid around the system. Also, I couldn't feel any play at the pulley. So could the noise be coming from some other internal part in the PS pump?
Should PS fluid be changed every 2 years along with coolant, brake, clutch etc etc?

1. ACE = Active Cornering Enhancement

2. Squealing from power steering is normally either the belt (slipping or misalignment) if fitted (gear driven pump on mine) or fluid setting up a vibration as it goes through a narrow passage (often a leaking internal seal) or caused by bubbles in the fluid, usually from a leaking suction line, often combined with a partly blocked suction line.

3. Probably, but it usually lives a lot easier life than any of the other three, so it is not as critical (unless you make a practice of overheating it by turning the steering when stationary, for example).

John

Thread: power steering fluid.......

Thread Tools

Bookmarks

Bookmarks

Posting Permissions