Rotella 15W40 nonsynthetic.

__________________


~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

For my 240D 1977:
For the first engine I used Conventional Castrol 30wt, that engine lated about 300K miles.
For the second engine bought from a dealer I am using Chevron Delo 15/40 C rated and change it at about 2000/2500 miles.

Vahe

WOW.. Isn't the recommended switch 7500 miles and 5000 for severe duty?

__________________
92 300D 2.5L OM602 OBK #59

One reason for changing oil/filter @ 2000/2500 miles is that I do not drive the car much these days, I am only 5 miles from work so the engine barely gets warm and thanks to $4 per gallon of diesel and still going up I will be driving a lot less.

Vahe

I don't feel like going to the car and getting my owner's manual out right now, but I think the "book" interval for oil changes on the 616 and 617 is 4000 miles.

__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

Not sure about the later models, the 1976 240d/300d states 3,000 miles for an oil change, and a transmission fluid change every 25,000.

The 1986 300SDL book I have states 5,000.

The car in this thread is halfway between a 76 and an 86... so yeah, 4000 would be right.

__________________


~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

to OP. 10w30 is almost certainly not rated for diesel use. ON a fresh engine I might use a synthetic diesel rated such as rotella. On an older engine I probably would stick with a rotella 15w40 non synthetic. I would change it at 3 to 5000 mile intervals depending on driving conditions.

Tom W

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

I have always used Rotella Synthetic 5W40. Had it in my 300SD for 100,000 miles and the engine was nice and clean inside.

I just swapped the SDL over from whatever the PO had to Rotella Syn and the oil leaks stopped within two weeks. Before he used to mark his territory wherever he was parked...

I follow the following schedule

Oil change every 3000 miles.
Oil filter change every 1500 miles.

I know it is a schdule that borders on the obsessive, but it makes ME feel better and the engine was spotless inside.

Doing the filter takes less than five minutes and the entire oil/filter change takes 1/2 hour.

__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy"

Current
Monika '74 450 SL
BrownHilda '79 280SL
FoxyCleopatra '99 Chevy Suburban
Scarlett 2014 Jeep Cherokee
Krystal 2004 Volvo S60
Gone
'74 Jeep CJ5
'97 Jeep ZJ Laredo
Rudolf ‘86 300SDL
Bruno '81 300SD
Fritzi '84 BMW
'92 Subaru
'96 Impala SS
'71 Buick GS conv
'67 GTO conv
'63 Corvair conv
'57 Nomad

Is your Mity Vac a hand pump type? I have seen the ones you connect to a compressor, but was thinking of getting one that had the hand pump and wondered how hard it was to pump it by hand.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

I recently saw Castrol 15W40 on sale for seven something a gallon. Do you buy yours in the gallon jugs? How much do you pay per gallon?

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

Older Mercedes with-out particulate traps I'd recommend CI-4 Plus oil. Castrol Tection is about 10.80 a Gallon. Its CJ-4 oil.

__________________
92 300D 2.5L OM602 OBK #59

What does that mean, CI-4 and CJ-4?

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

I use
Mobil Delvac 1300 15W40 Diesel oil

I love the modern 5w40 synthetics. Its amazing how fast these things crank when its cold out.

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

The letter "J" means it is a newer oil, or oil spec, than "I". As someone said elsewhere on this thread, the J has lower Zinc, one of the antiwear additives.

Because I own a Dodge Cummins, I monitor their conversations, and there's a big concern with the older engines on the oil issue. All oils are to be backwards compatible, but the J is pushing the limit as to if it should be considered a sub. for the I. Soon, you will not be able to purchase an I oil, and J will be all that is available.

Because of the change, Delo 400 CI-4 went from the top of list to buy, to near bottom for Delo 400 CJ-4.

BTW, this change was done for the "traps" on the new diesels in pickups, as the zinc and "high ash" additives will foul them.

There are additives in the J oils to replace the zinc, and phosphorus, but those don't last as long. Bottom line: change your oil and filter as per M-B schedule. This will be very important with a J oil.

Ron

__________________
1971 220D, daily driver, new paint, 142K
1973 220D, low compression
1975 300D, back on the road! 166K
1971 220D, salvage, rear hit, engine excellent
1972 250, bad cam, but runs!
1971 230, engine stuck
1971 220D, low compression, rusty
1976 240D, salvage, engine excellent
1966 230SL, water in oil after rebuild