Hi,
My oil is low and I forget what my mechanic told me to buy..
I live in LA where its always around 70+ degrees. I have a 1983, 300d.
Thanks,
Linda

Oh boy, you don't know the can of worms you just opened! But personally, I use Mobil1 15W-50.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

15-40 Diesel rated oil - Chevron, Mobil, Shell. Read the package.

I just called my mechanic...wanted to be sure of what he said.
he said,
Get 20/50, or if not available get 10/40, or if not available get 30 wt.
so hows abouts that.
Thanks
ps. I love my car, her name is cupcake

The weight of the oil can be somewhat dictated by the region where the car is to operate, but it MUST be diesel rated oil. Look for the C_ rating on the container. Not sure what the most recent letter is to be substituted for the "_", but this ensures that the oil is rated for soot control.

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1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150

Any 15W40 oil on the market will be diesel rated. For the other weights, you may have to do a lot of shopping to find one with diesel ratings.

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

Have a look at your service receipt, or start asking for a little oil change sticker at every oil change, with the weight and brand of oil marked on it. Or start changing your own oil!

Also, a far more interesting question, in my mind, is where did the original oil go? Are you leaking or smoking? How much oil disappeared and in what span of time?

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http://webwench.net/albums/new83-300...1700.thumb.jpg
1983 300D-T
348,000 miles

straight 40 is some good stuff, if you can find a place to get it.

i always use 15W40.

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1985 CA 300D Turbo , 213K mi

If you love cupcake you will disregard the recommendation made by your mechanic. He is recommending oils for a gasoline engine.
Use only diesel rated 15W40 in whatever brand or flavor you find.

DELO-400 (15W40) is available at Costco.

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!