Whoops, sorry didn't realize you were talking about a gasser.
You'd mentioned something about injectors, was that a replacement?
I'd wonder if after a good road trip of a couple hundred miles say you take a
sample and see if it still shows the fuel contamination.
6 mile trips are going to be all hell on oil, the engine never really warms up
in that short a period... If fuel contamination forces you to change oil at
less than 8,000 miles I'd say theres no point at all in using synthetic oil.
My wife was driving my pickup all the time, her commute was about 6 miles round
trip. We moved and now she's up to 20 miles round trip. I should do some more
analysis and see if the problems have dissipated. Even with the fuel
contamination 8,000 mile oil changes weren't a problem and since it was keeping
the rear main leak at bay I kept with it.
-Curt
Robert Bigham <[EMAIL PROTECTED]> wrote: Curt, I am one of the Benz gasser
gang. I do have a diesel VW.
The Benz is the one I asked about cleaning inside the engine.
I do a lot of 6 mile trips, some longer, and some real road trips.
No futzing around for a few blocks at a time.
Wed, 28 Nov 2007 07:09:47 -0800 (PST)
From: Curt Raymond , who wrote
Subject: Re: [MBZ] Cleaning enigine inside with synthetic oil
To: Diesel List
My gasser pickup periodically has trouble with fuel in the oil but thats
usually after a period of mostly short trips.
I thought diesels were largely immune to the problem since they tend to be
lean burn anyway.
Do you take mostly short trips? If so I probably wouldn't bother with
synthetic, short trips stack the deck against any oil...
-Curt
Wed, 28 Nov 2007 05:41:48 -0600
From: "Robert Bigham" wrote
> Subject: Re: [MBZ] Cleaning enigine inside with synthetic oil
>
> In recent issues, some have remarked that Mobil 1 or (maybe)
> similar synthetic oils will clean out interior engine nasties, or
> words to that effect.
>
> Is that for real? I'm talking about the black almost crusty crap
> that may accumulate on interior engine surfaces. I'd like to
> hear from someone who claims to have actually done it.
>
> Assuming it is for real, how does one use it for this purpose?
>
> Change oil and filter, obviously. Then run for how long? How
> many miles/change oil and filter cycles are thought needful?
> Thanks all.
>
--------------------------------------------------------------------------
Maybe I don't have a problem, and just don't like the looks of what
I see.
My oil analysis is normal or so the NAPA testing company
says, except I (10 or 15 thousand miles back) had "excessive fuel,
check fuel system." I've been doing that and will finally get the
injectors tested after January 1.
Car starts and runs very well and now is getting a solid 25 mpg
on the road at 70+ mph steady. Top speed well exceeds indicated
105 mph - a friend claims to have driven it at indicated 120 mph.
Not me, at least not yet. No ignition problems. There may be
an injector leaking down to put the excessive fuel in the oil, or
so I have been told.
I use Castrol 10W-40 or 20W-50, depending on the temperature
when I change oil. Have changed oil and filter at about 7,000 miles,
which I have determined is too long, it ought ot be 5,000 miles max.
Oil stays pretty clean until 4,000 miles or so, with no noticeable oil
consumption until after 5,000 miles. Then it will get rid of a quart
in another 1,000 miles or so.
But there is lots of black crusty crap on interior engine surfaces.
It's
the sort of stuff that gets removed in a hot vat at overhaul. Should I
just put on my big boy breeches and not even think about it?
I think I am hearing change to Mobil 1 and change the filter
frequently,
like maybe 1,000 miles for a while. I have a whole box of filters and
can change them when I choose.
Keep on talking. I'm listening.
Robert
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