TraceF
02-13-2003, 20:11
A few days ago in a different forum I posted this (part of a longer post):
<<Since October there have been approaching 400 posts in at least 3 forums on this filter issue.
I have forgotten much because I am preoccupied with other matters so I have a few questions to help clear things up for me and possibly others.
Did we not check and then confirm the oem Racor filter was a 2-mic? Or is it a 5-mic? I thought Parker/Racor told me 2-mic.
Is there any evidence that GM thinks the oem filter is inadequate?
Are there tech bulletins addressing injector related issues caused by oem filter issues?>>
pinehill answered this (part of a longer answer):
<<1. A number of our membership are seeing premature injector failure. I consider any injector failures prior to 150K miles to be premature.
2. We know that the Bosch injector system was designed for fuel much cleaner than we have here in the U.S.
3. George Morrison has seen badly worn injectors, with the wear directly attributable to dirty fuel.
4. We all know that we frequently see products which are "rated" for performance levels which they really don't satisfy, ie, Racor OEM 2 micron.
5. It's not always the case that GM issues tech bulletins in a timely manner for problems which owners KNOW exist, and for which GM has been spending a lot of warranty dollars. A case in point is the steering rattle, which existed for 2-3 years before the bearing fix TSB was issued. I won't be a happy camper if I've had to pay out-of-pocket for a set of injectors before GM faces up to the problem and issues a recall on the OEM filter system.
6. John Kennedy is the only one here developing an auxilliary filter who has published COMPLETE and excellent filtration test results (on his website).>>
It occurs to me that by the time most of us get to the potential injector issue/problem stage of 120-150,000 miles an aftermarket products manufacturer may come up with a performance fix that includes injectors that are more suited to the quality of fuel that seems to be the source of the problem anyway.
Any body know anything about this?
[ 02-13-2003: Message edited by: TraceF ]</p>
<<Since October there have been approaching 400 posts in at least 3 forums on this filter issue.
I have forgotten much because I am preoccupied with other matters so I have a few questions to help clear things up for me and possibly others.
Did we not check and then confirm the oem Racor filter was a 2-mic? Or is it a 5-mic? I thought Parker/Racor told me 2-mic.
Is there any evidence that GM thinks the oem filter is inadequate?
Are there tech bulletins addressing injector related issues caused by oem filter issues?>>
pinehill answered this (part of a longer answer):
<<1. A number of our membership are seeing premature injector failure. I consider any injector failures prior to 150K miles to be premature.
2. We know that the Bosch injector system was designed for fuel much cleaner than we have here in the U.S.
3. George Morrison has seen badly worn injectors, with the wear directly attributable to dirty fuel.
4. We all know that we frequently see products which are "rated" for performance levels which they really don't satisfy, ie, Racor OEM 2 micron.
5. It's not always the case that GM issues tech bulletins in a timely manner for problems which owners KNOW exist, and for which GM has been spending a lot of warranty dollars. A case in point is the steering rattle, which existed for 2-3 years before the bearing fix TSB was issued. I won't be a happy camper if I've had to pay out-of-pocket for a set of injectors before GM faces up to the problem and issues a recall on the OEM filter system.
6. John Kennedy is the only one here developing an auxilliary filter who has published COMPLETE and excellent filtration test results (on his website).>>
It occurs to me that by the time most of us get to the potential injector issue/problem stage of 120-150,000 miles an aftermarket products manufacturer may come up with a performance fix that includes injectors that are more suited to the quality of fuel that seems to be the source of the problem anyway.
Any body know anything about this?
[ 02-13-2003: Message edited by: TraceF ]</p>