I think that the lighter weight oil has a bit harder time sealing the piston
the the cylinder wall at first.... but then gets going.... and I dont think
that you can go back to regular after you have changed to synthetic cause it
leaves a slight film on the parts that reg oil cant adhear to well and when
you first start up you just grind metal, sort of. Thats what Ive heard
anyway.... any truth in what Im saying here guys????
----- Original Message -----
From: "Jared Kaplan" <blizzard@gis.net>
To: <dakota-truck@BUFFNET.NET>
Sent: Thursday, March 15, 2001 8:07 PM
Subject: DML: Starting trouble.. well sort of
> Hey... well I changed my oil last week and instead of using the regular
> 10W-40, I switched to synthetic and AutoZone recommended I use 5W-30
> instead. Ever since I put that in it seems to be that the engine is taking
> some extra turns to start up when its not warmed up. However, right after
I
> changed the oil I filled up my gas tank from a Mobil I have not been to
> before. I figured at first it was bad gas, then I just filled up 3/4 tank
> today with new gas, and just started it up after cooling off and its still
> taking longer to start. So, my question is, can oil that is too
lightweight
> have an impact on the starting? BTW, it is Synthetic and before I was
using
> regular if that has any impact on the answer. Also, as for the climate,
I'm
> in Massachusetts... so generally 40s this time of year during the day.
>
> Any help is great! I want to get the 5W-30 out of there immediately if it
> is going to cause engine problems.
>
> Jared
>
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