AnswerID: 24264 Submitted: Saturday, Jul 05, 2003 at 13:27
David N.
replied:
G'day Donald.
Not exactly replying to your question, but here goes..
I have a '91 GQ TD42 on which I have a Bypass Filter (FRANZ)
By having a Bypass filter you can greatly extend your oil AND fullflo filter change intervals.
Because the bypass filter is constantly cleaning the oil down to about 1 micron, the full flo filter and oil last much longer. I change my oil and fullflo filter only about once a year ) approx 20,000 klms or more and have had my oil checked (oil analysis) a number of times which in fact proved I could go a lot longer between oil changes- but I intenionally err on the safe side. I replace the bypass filter regularly- about every 2000 klms- element only costs about a dollar- and then the oil is topped up with about half a litre or so of fresh oil. This takes me about ten minutes to do, and I can do it on the side of the road or out bush no problem.
It sure beats crawling under the car to do a full oil and filter change, and it saves me money. Also the car gets a regular topup of additives because you add a bit of oil each time you change the bypass filter element (It is literally a good quality toilet roll!)
My son drives our old diesel gemini which has had the same filter setup since new- it has close to 400,000 klms and has had roughly about five or six complete "oil changes " in it's life. (I've lost track of the exact number!) Engine is in perfect nick, uses NO oil and has factory spec compression etc. I have no doubt this engine will way outlast the rest of the car as rust is a constant battle in the 23 year old car, wheras the engine is perfect.
If your filter is horrible to change, at least this would mean you could do it a lot less often.
Here's their website in the US- I don't know who the local importer is now as once you buy them they last a lifetime- you just swap the filter from car to car... I've had mine for many many years.
http://www.wefilterit.com/index.htm
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