This is interesting.
My daily driver is a Miata - yes it leaks when it rains but it has an atomic
heater, and it's outnumbered by TR's. They have a problem with tapping
hydraulic lifter assemblies when the engine starts up, I guess the HLA's
drain as it's worse with a hot engine. Fresh oil and there's no tapping noise,
around 3K miles the noise starts, I use synthetic oil because on the
occasion I have to let it go over 3K (usually because I'm too busy working
on one of the TR's), at 4K it's LOUD and continues longer. I guess their
scientific study says that's OK but my unscientific observations get me
running to the store for oil and a filter.
Andy
On 06/09/99 04:08 PM ArthurK101@aol.com said...
>BTW - Consumer Reports did a test regarding oil useage in NYC taxicabs .
>Their conclusion was that because of the progess in Oil formulation and
>filters it is not necessary to change the oil every 3K miles -- as it used
>to be. It was an interesting test and an interesting article. Of course the
>oil companies want us to change as often as we can. :-). Cheers.
>
>Art Kelly
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