viper wrote:

they claim this is good for ZF 6 and 8 speed

are they lying ??

http://www.ebay.co.uk/itm/Pentosin-ATF-1-L...56644d61e0


and this one

http://www.ebay.co.uk/itm/10-Liter-Getrieb...2a379d9c1f

The 6 speed takes a different oil to the 8 speed sir! Twice the money too for the 8 speed fluid!

Cam-Tech-Craig wrote:

viper wrote:

mikey is probably correct on the filter change , however for peace of mind Id change my filter the day before .

Ive got a very reasonable group buy price of him to flush , if any one else in the northwest is interested in that let him or me know

So, how do you change your gearbox filter the day before you flush it? Doesn't make any sense as you have to drop the oil to change the filter!

Far too many owners of these flushing machines tell you "you don't need to change the filter" but imho thats non sensicle! Would you do that to your engine? and no i don't believe for a second, its just a strainer! Else why have it as a serviceable item? You don't change the strainer in your engine sump at service points now do you!

A few quotes from around the web for you Craig

Quote:

3) Is the above a pointless exercise unless I remove/clean the sump and replace the filter ( trying to avoid if possible as this sounds a bit of a nightmare!!


The general consensus is that the filter is not worth bothering with (it's more of a strainer than a filter).

Quote:

The sump pan has a built in strainer, many have changed the pan for the same plastic one or upgraded to the BMW metal pan

Quote:

I had a look at the "filter" yesterday and it is better described as a strainer, more like the strainer on the end of the oil pick up pipe in the engine sump. Unless the oil has got really thick and gooey the filter isn't going to be blocked. So I think I'm right in thinking that any larger particles which are in it will remain there if the flow goes in the same direction.

Since there is no requirement to change the pick up strainer in the engine I would imagine the box "filter" can safely be left as it is.

If thats not enough for you...

Note, Oil Strainer

Craig wrote:

Far too many owners of these flushing machines tell you "you don't need to change the filter" but imho thats non sensicle! Would you do that to your engine? and no i don't believe for a second, its just a strainer! Else why have it as a serviceable item?

Because your engine oil filter has a service interval of 15-16k miles.
The gearbox "filter" has an interval of 150k miles

The main cause of gearbox issues with the ZF6HP26 is due to the condition of the oil.
I can tell you, I flushed an RRS box with 87k mles on it yesterday. The owner was able to tell the difference in gearchanges within 100 feet

You won't convince me Mickey I would never service the gearbox without changing the filter! Period!

And virtually every gearbox i service the customer feels a difference immediately!

We will agree to disagree!!!

How much does one of these filters / strainers cost & how difficult are they to replace ?

IMHO - a strainer is something I can see the condition of with my eyes alone - I can see if it is blocked and can probably clear it with a tooth pick or bit of wire. Finer than that and I'd call it a filter - and if I can't tell by looking, I'd be more inclined just to swap it.

The fact is if I had a flushing machine to replace the oil would I want to remove the sump,wipe it all out and fit a filter/strainer when I could keep it simple and just change the oil.To be honest I would but most people would just want to do the simple thing and still get good money for it.To be fair I think the biggest problem is the oil and there is no question it has the biggest benefit but any mechanical person would want that sump off ,wipe all the out,clean the magnets and get the new filter on as well!

how does one change the sump and flush without wasting new oil, daft question?

not sure that's possible. perhaps the bridge solution is to flush then change the sump/filter then top up.
this is what that guy in CB used to offer but he's off the map now

Cam-Tech-Craig wrote:

You won't convince me Mickey I would never service the gearbox without changing the filter! Period!

And virtually every gearbox i service the customer feels a difference immediately!

We will agree to disagree!!!

I didn't expect to convince you, Craig. Just putting the facts out there for all to see

Bear in mind, as I have said in the past, as well as others on this very forum, that it is the old, dirty, degraded oil that causes the issues. By replacing the oil pan, you are still only replacing around 5 litres of oil, still less than half of the oil capacity of the gearbox...

FWIW, I flushed an RRS TDV6 box on Friday (without replacing the sump) This is the feedback he put up on the RRS Forum.
I have slightly altered, and not quoted the whole post, due to site sponsorship rules, but said post is there for all to see

Quote:

Yesterday i treated the Sport to a gearbox flush and *some other work* form Mike.

I can honestly say WOW what a difference a simple oil change can make and the oil didn't even look that bad.
From the first 30 seconds in the car you begin to realise that all the little quicks that were once there have now gone. Things you had been accustom to "The bump between 1st into 2nd" and the bump from "2nd into 1st" have now gone. The change is so much smoother and you hardly even notice the gear change.

But yes, we shall agree to disagree

Quote:

how does one change the sump and flush without wasting new oil, daft question?

Short answer is, you can't, unless you re-use the oil that was drained out. Not advisable!

If it were me, I would flush the box, then drain and swap the sump over, then fill again with new oil. You do waste 4-5 litres, but if the oil is bought in bulk, it is fairly cheap

cant find this oil in bulk , only in 1 ltr tubs,

some links have been posted in his quest but its always the wrong oil

Google 'smith and allan lifeguard 6'

viper wrote:

cant find this oil in bulk , only in 1 ltr tubs,

some links have been posted in his quest but its always the wrong oil

I order in oil in 250 litres at a tine, still comes in 1L bottles

Yes sorry they are 1 litres,i think that is all you can get it in!

[quote="Rangeyman"]Google 'smith and allan lifeguard 6'[/quote


thanks but its the exact price as normal zf , no discount for 5 ltrs !

I got my tranny oil and filter replaced at just over 50k by Gordon at 4-tech, with his flushing machine after seeing his u tube video, and noticed the improvement straight away in the 5 speeder !

apparently according to this source the shell oil IS the zf oil


quote

Thanks to their strong relationship with ZF, Shell Lubricants were invited to submit proposals for working with the company to develop a transmission fluid for a new six-speed transmission for passenger cars at ZF’s Saarbrucken site in Germany. In order to secure the contract, Shell Lubricants had to demonstrate they had the necessary logistics in place and the production facilities and technology available to produce high volumes of the product. Shell’s response was development of Shell ATF M – 1375.4, manufactured at its specialist blending plant, Grasbrook in Germany. As a result, Shell was awarded an exclusive contract to supply up to 6,500 fluid tonnes per year of Shell ATF M – 1375.4.