Or:
in lots of start-stop driving (where you puts lots of load and time on
the oil vs. miles travelled) or in cars (like ours) that often have
richer-than-ideal mixtures at times.
We forget- modern cars, with well-designed inlets, injection, and
combustion chambers, do a great job of burning all the fuel completely.
The roadsters often don't. They aren't BAD, just not as good...
2 more cents,
Toby
Ray Cole wrote:
>
> Actually I think the motor oil manufacturers, synthetic and conventional,
> all are very conservative in their reccomendations. Where it can make a
> difference is in very cold or very hot conditions.
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