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Toyota moved to smaller filters starting way back with the 22R engines (possibly RE). They followed suit with the 1FZ engines also. Both of those families still last forever. I don't think it is a conspiracy - I think it's better engine design. Look at weights, change intervals, all kinds of stuff - what was "cutting edge" back in the '70s is chuckled at now...
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Mike
1976 Euro 911
3.2 w/10.3 compression & SSIs
22/29 torsions, 22/22 adjustable sways, Carrera brakes
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