Thanks, Curt. That's the kind of info. that's helpful. You know, I actually haven't heard any tales, my hesitation is just something that came naturally to me I guess - sort of a common sense suspicion thing.
But success stories of some 100k mi. are pretty good I suppose. Funny, I was just musing yesterday at how when people are selling a diesel these days, they throw in the required "biodiesel" word for marketing. But the thing that makes me chuckle is that they often say something like "been running bio for a year, and no problems!" Now, not that I'm against bio at all, but this sort of statement has two problems: 1. I would much prefer evidence that comes from maybe 10 years or at least 100k. mi.; and 2. The fact that they even mention that there are no problems suggests to me that there is some reason to talk about problems. Brian On 11/28/07, Curt Raymond <[EMAIL PROTECTED]> wrote: > > You replace the O rings on the center bolt (really the shaft down the center > of the cover) not the bolt itself, total cost about $.80 IIRC. > > As to your concern about Mobil 1 I had a sarcastic comment all ready but then > realized you'd dismiss it out of hand. > Instead I'll ask you this, how many other people do you have to hear from > that have changed to synthetic oil on high mile engines with no major issues > before you'll give up on the old wives tales (really old husband tales I > guess) and give it a shot? > > Example #1 1996 Dodge Dakota ~120,000 miles at switch, leaking rear main seal > was resulting in ~1qt loss in 500 miles. I changed the Mobil 1 10w30 and > within 30,000 miles the leak had slowed to about 1qt in 1500 miles, now its > got ~210,000 miles and leaks like a qt in 2000 miles. > > Example #2 1983 MB 240D ~205,000 miles at switch, leaked ~1qt in 800 miles or > so. Switched to Mobil 1, tried 0w40, 15w50, and 5w40 over ~ 60,000 miles. > Leaked worse with 0w40, say about 1qt in 500 miles. A little better with > (surprise) 5w40, ~1qt in 900-1000 miles. 15w50 was about the same as > conventional oil. Never got any worse. Cold starts (at -20F say) were vastly > improved. Sold with ~265,000, still on the road with a new owner... > > Example #3 1985 MB 190D ~230,000 miles at switch, leaked ~1qt in 1000 miles > on the first fill with 15w50, now almost 2 years and ~50,000 miles later its > down to about 1qt in 2000-2500 miles. I'm currently using 5w40 which if I can > continue to get an adequate supply of I'll still use. This car I use LarryT's > oil analysis on and change the oil at 10,000 miles (working toward higher) > knowing its not "used up" and my engine is protected. > > > I just did a quickie spreadsheet, based on 25,000 miles a year at 10,000 mile > changes on Mobil 1 and 3,000 mile changes on conventional oil although each > change with Mobil 1 is more than 2x the cost of conventional oil my overal > cost (not including my time) is ~$50 LESS per year by using Mobil 1. > 3,000 is probably overly frequent for conventional oil, I ran the spreadsheet > again with 5,000 miles and Mobil 1 loses by $10. Take Mobil 1 out to 11,000 > miles (which I don't think is impossible) and they're dead even. Fun with > spreadsheets... > > -Curt > > Date: Tue, 27 Nov 2007 18:50:15 -0800 > From: "Zoltan Finks" <[EMAIL PROTECTED]> > Subject: Re: [MBZ] Ticking noise - normal or trouble > To: "Mercedes Discussion List" <mercedes@okiebenz.com> > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-1 > > Thanks. Hmm replace the cener bolt - wonder if that's an expensive > part. > > Yeah, I came close to switching to Mobil 1 this time, but I am still > wondering if switching an old engine to synthetic could cause any > problems. > > Brian > > > --------------------------------- > Get easy, one-click access to your favorites. Make Yahoo! your homepage. > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
