? about the 60x motors - Page 3 - PeachParts Mercedes-Benz Forum

babymog · #31 12-14-2010, 02:59 PM

Quote:

Originally Posted by buffa98

Only the DDEC III 12.7 liter detroit truck engines

. Just changed the oil and ran the overhead every 250K.

But with no maint I agree. There is not one made that is idiot proof.

We recently bought a coach with 477k on its 12.7L S-60. Was owned by a country star, professionally driven & maintained. We had the shop pull main & rod caps to check the journals, flawless and tight, re-assembled with the original bearings.

Good maintenance is all it takes, long-haul miles help also.

#32 12-14-2010, 03:18 PM

Quote:

Originally Posted by ah-kay

There is 1 member here who was willing to spend big bucks to keep his 617 going. It is currently 560K+ but it is in the shop for the last 1+ month. May be there is 2nd thought.

So anything is possible, it is just a matter of money.

Not really big bucks, but it does take a little effort to stay on top of everything as it ages.

Jeremy5848 · #33 12-14-2010, 03:56 PM

Quote:

Originally Posted by shertex

As I said on another thread, one MB tech told me that, not only is the 602 the best engine MERCEDES ever made, it's the best engine ANYONE ever made!

What did Mercedes do to make the 602 so much smoother than the 617? Both have 5 cylinders and should be equally unbalanced.

babymog · #34 12-14-2010, 04:04 PM

5cylinders is actually a very smooth number, hard for the engine to set up any natural vibration in a 5-cylinder 4-stroke engine. Audi and Mercedes both were very successful with I-5s, even Honda/Acura decided to try it.

DieselPaul · #35 12-14-2010, 05:15 PM

Best and worst are both terms of opinion. Lets not forget that. Obviously some arguments are extremely poorly backed.

Facts can prove a motor is bad, but it takes a lot more to determine the 'best'

gastropodus · #36 12-15-2010, 12:38 AM

Quote:

Originally Posted by vstech

the 61x motors are heavy, require serious regular maintenance and produce low HP.
over the course of that million miles, over 666 GALLONS of motor oil are needed. and the valves need to be adjusted over 66 times. that same miles on the 60x motor only require 266 gallons of oil, and the valves never need adjustment (they do fail/wear and need replacement though...) if synthetic oil is used over the lifetime, less oil is needed still. where synthetic oil barely reduces the oil change requirements of the 61x motors.
I'll give it to the 61x motors, they are serious solid motors. but I also think the 60x motors are just as good if not better in many ways.

Hey John, wait a minute... why are the oil requirements less for the 60x? Shouldn't they both have oil changed at 3000 miles? My darn W201 takes TWO GALLONS of oil per oil change! It's more than my OM616 in the 240D.

Waiting for enlightenment, I am

Kurt

Hit Man X · #37 12-15-2010, 12:41 AM

Quote:

Originally Posted by gastropodus

Hey John, wait a minute... why are the oil requirements less for the 60x? Shouldn't they both have oil changed at 3000 miles? My darn W201 takes TWO GALLONS of oil per oil change! It's more than my OM616 in the 240D.

Waiting for enlightenment, I am

Kurt

Wait, do you actually change your oil at 3000 miles?

gastropodus · #38 12-15-2010, 01:04 AM

Quote:

Originally Posted by Hit Man X

Wait, do you actually change your oil at 3000 miles?

On the W201, yes. The 240D is on the Continuous Replacement Plan (quart of oil with every complete fill-up)

Kurt

Hit Man X · #39 12-15-2010, 01:07 AM

I do not know all the details on the cars you own, but my daily drivers do not get 3k OCIs. It is a waste of money

layback40 · #40 12-15-2010, 01:38 AM

Quote:

Originally Posted by gastropodus

On the W201, yes. The 240D is on the Continuous Replacement Plan (quart of oil with every complete fill-up)

Kurt

This is a false idea !! The oil burns, the soot remains. Continual top up without replacement is a good way to wreak a motor. let it get down low & then drain the remainder. The motor will last much longer, run smoother & be less likely to let you down !!

biopete · #41 12-15-2010, 01:56 AM

I will never go back to a 617 if for no other reason than -- Serpentine belt. Alternator R&R is the best thing ever. 13 mm wrench to remove tension on the belt. Then 15 mm gear wrench on two bolts on alternator -- 1 from top , 1 from bottom. The thing falls out . Really. It does. And to top it off there is a big bar there to catch it. Saves you when you forget to unplug it first. Now that is engineering.

What else do i love about the 60X . Haven't done starter yet. But i bet its easy. Air filter is better. Glow plug harness holds the nuts for you and is better. They seem easier to get to. Ac is better. Last but not least MPG is better like 10 mpg more for the 602.

2.5Turbo · #42 12-15-2010, 04:01 AM

Quote:

Originally Posted by gastropodus

Hey John, wait a minute... why are the oil requirements less for the 60x? Shouldn't they both have oil changed at 3000 miles? My darn W201 takes TWO GALLONS of oil per oil change! It's more than my OM616 in the 240D.

Waiting for enlightenment, I am

Kurt

The owner's manual for cars with 60x engines recommends a 5000 mile OCI. With synthetic you can go longer. I sent in a sample at 6500 miles using Mobil 1 5W-40 in my 602. Insolubles were at 0.3% and the oil still had lots of life left. Blackstone said it looked like it had been run 4200 miles. They said I could run to 10,000 miles, but to be safe I do it around 8000.

buffa98 · #43 12-15-2010, 09:02 AM

Quote:

Originally Posted by babymog

We recently bought a coach with 477k on its 12.7L S-60. Was owned by a country star, professionally driven & maintained. We had the shop pull main & rod caps to check the journals, flawless and tight, re-assembled with the original bearings.

Good maintenance is all it takes, long-haul miles help also.

On the one I sold 2 years ago it had 1,219,000 when I sold it. The pan was off once at 720K. I hit a big furry thing at 70mph and cracked the pan. Same thing rods and mains were fine. Buttoned it back up and kept rolling. Last time I talked to the gut I sold it to it was at 1 million 450k. He was starting to have blow by too the point of 2 gallons a week. He does not care, it will run for him when it finally dies he will junk it.

vstech · #44 12-15-2010, 09:11 AM

Quote:

Originally Posted by gastropodus

Hey John, wait a minute... why are the oil requirements less for the 60x? Shouldn't they both have oil changed at 3000 miles? My darn W201 takes TWO GALLONS of oil per oil change! It's more than my OM616 in the 240D.

Waiting for enlightenment, I am

Kurt

the 61x motors have a 3K to 5K OCI, needed depending on oil and filter useage.
the 60x motors will handle longer OCI, I computed it with a 7500mile OCI.
both use close to 2 gallons each oil change.

shertex · #45 12-15-2010, 09:15 AM

When I did an oil analysis on my 602 with 189,000 miles on it, after 7500 miles I had 0.8% soot and all other measurements were well within limits. There's no question that I can EASILY go 10,000 miles between changes. Somehow the idea of a 15,000 mile oil change spooks me....but I have no rational reason to be concerned.