CYL 1 250
CYL 2 250
CYL 3 245
CYL 4 243


Looks pretty good to me.
My S2000 has almost 40k miles on it. According to the dealer I bought the car from, the previous owner really only did alot of highway driving. I always hear people say that if you put 20,000 highway miles on a motor, that the actual wear on the motor would be equal to a car with 10,000 miles of city driving. How accurate is that?

 

I would say milage is milage. Highway miles is bs.

Sure, less idle time is better, but with the way engines are built now I wouldn't worry about it too much.

 

Looks like solid compression numbers to me. How much does a compression test cost at a dealership?

 

free i9 have my own tester, its rather easy

 

Do it yourself =

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chubzilla &raquo;</TD></TR><TR><TD CLASS="quote">
According to the dealer I bought the car from, the previous owner really only did alot of highway driving. I always hear people say that if you put 20,000 highway miles on a motor, that the actual wear on the motor would be equal to a car with 10,000 miles of city driving. How accurate is that?
</TD></TR></TABLE>


well dealers are full of ****, 9 out of 10 times they dont know how the car was treated, so of course they are gonna tell you "all highway miles".

highway miles arent always better than city. no telling how high RPMS he was cruising etc.

regardless, im sure its fine, and by the looks of your compressure results, the engine is very healthy...

carbon build up usually can cause slight differences in compression results as well.

 

^i agree.

those little differences arnt anything to be concerned about.


how long have you had it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chubzilla &raquo;</TD></TR><TR><TD CLASS="quote"> I always hear people say that if you put 20,000 highway miles on a motor, that the actual wear on the motor would be equal to a car with 10,000 miles of city driving. How accurate is that?
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Good numbers. Were they done with or without the throttle depressed? With throttle depressed, the numbers will be higher. Either way, the rings appear to be healthy.

As far as wear and tear, engine load is a major factor. Lugging the engine around town can be just as harmful in accelerating wear as high speed highway driving, high speed=over 90mph consistantly

 

that is with the throttle wide open

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chubzilla &raquo;</TD></TR><TR><TD CLASS="quote">that is with the throttle wide open</TD></TR></TABLE> good numbers