I've noticed that my wife's 95 E320 has just recently developed a very
slight rough idle and a knock on deceleration (more noticeable when cold).
The car has been fully tuned up (it has 120K+ miles) and my wife swears that
she only puts high-octane fuel in it. I also seem to notice more exhaust
smell then usual (but this might just be because I'm paying attention to
it). Could this be an indication of a bad air flow sensor? I have no check
engine light indication.
I agree on not using chainsaw oil. The car only gets factory spec. oil.
Besides, I'm not sure how adding chainsaw oil would make the car runs less
rich (I'm pretty sure that is the cause of the knock on decel).
"my wife swears that she only puts high-octane fuel in it."
Don't even trust this. Now, add some right (high) octane in your tank and
also add some fuel additive for the leftovers that MIGHT be low octane.
Now, run the car and make it nice and hot and run at high rpm. for 30 secs.
Tell me what happens - any knocking?
Yes. Me :-)
Worked very well and 800 ml. of teflon.
My next oilchange is soon - after aprox 5000 km. and I will put in 1 liter
of chainsaw oil and 5.6 liters regular and 400 ml. of teflon.
Engine runs great - less noice at 1600 rpm in 4th gear at aprox. 60km/h.
I shall listen to the noice when I change the oil.
On Mon, 22 Nov 2004 19:20:45 +0100, "news.tele2.dk" wrote:
Like I said, this is the *exact* reason that people pay 'overs' for
FMBSH. You may be real happy with your car, but who knows what damage
you are slowly doing with that, that.... that chainsaw oil stuff? Just
because something doesn't explode after five minutes doesn't mean it
is a good job, a good idea or good for the car. Why not just put
engine oil in your engine, and chainsaw oil in your chainsaw?
You are suggesting that I put chainsaw oil cocktail in my Mercs? I
would rather remove my own gall bladder with an oyster spoon :)
Well, I figured it out. The rough idle was not an air mass problem but
rather a busted engine mount. It still has a *very* slight knock at
~1,500RPM when cold, but I'm going to tackle that another day (and no, I'm
not considering chain saw oil yet...)
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