The 82 300sd I just bought had a reciept in the glove box for an oil change with 10w30 oil. I know that this isn't the correct oil for a diesel, so I drained it and replaced it, but could there be any damage that was done to the engine from running this weight of oil?

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87 300D - Running on Veggie oil; 260,000 plus miles; Original #14 head

10w-30 is not the proper weight for your application ......You need an oil that meets CF-4 or CG-4 API classification...Go to http://www.whnet.com/4x4/ theres a link to the correct oil for your car....
Regular oil ....??? not to sure if it did any damage.....

damage unlikely. years of wrong oil prob. premature wear.

tom w

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[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.

At my shop, we have alot of diesel impliments, a air compressor a Chev diesel dek truck, we change oil regularly, but as winter sets in we switch from 15W40 to 10W40....is this wise? does it help starting? or is it BAD?

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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FACEBOOK: PANZER450

The only problem with using the xW-20/30 oil is it's not ment for diesel. Diesel oil is built to handle the soot and combustion deposits dumped into it. And there is not really a wrong weight of oil. I've seen CF-4 oils in 5W40, 15W40, 15W50. Just don't go extreme and use something like 0W20!

How about this.

A couple of months ago I scored up about 30 gallons of free 20W50 when I picked up a free oil pump off of CL. I was saving it for Summer as I know winter is a bit cold for that and my truck and MB would hate me for it on these cold mornings we've been having. I think this week is going to be the last cold week (I sure hope so) Portland weather is a bit off this year......but the question is, I'm do for an oil change about 300 miles ago but was going to wait till after this last cold snap to put this in and try it. If it seemed to want to punch me in the face (Here I am humanizing my cars again) I would just drain it out and put some delo 15-40 back in.

What is your thoughs on this? To heavy yet?

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76 300D 130K "Stella" (Sold )
74 240D 299K (Donated to Highschool For Senior Project WVO)
83 300TDT 290K (My one and only)
Sanford, NC

Addicted, do you use a block heater? If you do, and can plug it in at both ends of your commute, then yes, you can make it work.

Well,

On the MB I do and I'm and most of the time I'm not stopped long enough for my block to cool all the way down.

As for the truck though no.

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76 300D 130K "Stella" (Sold )
74 240D 299K (Donated to Highschool For Senior Project WVO)
83 300TDT 290K (My one and only)
Sanford, NC

I doubt that any damage was done. Opinions on oil are rampent and highly varied. All dino oil stinks anyway. Use synthetic for a long life. (the car not yours)

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1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair

Buy something antiquated like an old British motorcycle or a Harley (not the latest v twin) in order to use your 30 gal. 20/50.
Don't put it in your Merc.

I don't think non-diesel rated 20/50 oil will hurt your Benz, BUT, it won't carry much soot. I would not run it more than 2-3K miles before you dump it.

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)