AMSOIL distributor is Siderney

Ah righto. I'm in Narrabri, so probably about the same for postage.

keith
I have a troopy and I am going to look up the frantz site and get some details about a filter for the troopy then start contacting the above people re amsoil
Thanks Bob

Hi Bob - there are several manufacturers for this gear; Amsoil; Frantz and Baldwin.
The Frantz make the paper roll style which was too messy for me. The other two make the screw on style. The Amsoil sell the complete kit, where-as Baldwin only sell the filter and you have to organise all the fittings etc. I also found the Baldwin people very unhelpful (and thats putting it mildly).
The Amsoil people were the exact opposite - very helpful with full explanations etc.
regards................Keith

Keith,
I'd be interested to know whether your 1999 model has 2 filters the same as each other, or like mine, has 2 different filters? On mine, the front filter is supposedly a by-pass filter with a different size thread, whereas the rear filter is a "normal" type filter. However, some of the earlier 4.2 diesel GUs as well as the GQ range of 4.2 diesels, had 2 filters of exactly the same type/size/thread etc.

The reason I ask is that if yours has 2 different type filters as standard, then by replacing the rear (normal) filter with a nipple and a amsoil by-pass filter, you may be asking for strife, as you will not have a normal, high flow filter at all and could be causing a flow restiction in your oil ways. Just a thought mate.
Cheers
Roachie

Thanks Roachie - yes mine has 2 identical (ryco Z503).
The other version you mention uses one Z503 and one Z416.
It was explained to me that the engine is designed for the rear to have a bypass, and the Z416 is a combination full flow plus bypass.
It filters to 25 micron (not much of a difference).

I had exactly the same concern - starting with 2 full flow at 40l/min, and changing to one fullflow and one bypass - must loose some flow rate. I have spoken to a Steve Clifton at Bridgewater Radiators in SA (08 8339 3731) who has run this set-up for over 100,000ks, and seems OK.

Your setup is the best. I may even go that way later, but the cost is around $380 plus install. Might have a talk with mechanic before getting the nipple option.
.....Off to Innaminca and Coongie lakes tommorrow for 3 weeks, so won't be on line.
......................Keith

Keith
I am semi retired and work for a bus company driving buses every now and then. When I discussed the matter with the owner this morning he said that he knows of a few fleets that have tried it and it has destroyed there motors one in particular was a trucking co that put synthetic oil in two of their trucks and both motors have been replaced supposedly due to the oil. H stated that it got too thin when hot and damaged the rockers and cams. I am not mechanically minded so I take his word for it.That worried me a bit (in fact a lot) Your thoughts Keith or any one else.
Regards Bob

Boo boo, that's simply not possible.
Wrong type or grade of oil perhaps or perhaps engines were going to die anyway.

Synthetic oil is FAR superior to mineral oil in EVERY single respect.... except price that is.