oil weight - 300TDT?

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Ruddy Duck - 06 Feb 2007 02:25 GMT

Hi all just wondering what the appropriate oil weight would be for my
300tdt? for my toyota diesel it was 15w40 is this correct for the
Mercedes diesel?

Also I live in Vancouver BC, should I take the car to a quicklube? I
dislike paying huge dealer / boutique pricing for basic maintenance.

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Tiger - 06 Feb 2007 04:50 GMT

Yes, that is the right weight for diesel... If you can run synthetic, you
might want to go with 5W40 by Shell Rotella...

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Richard Sexton - 06 Feb 2007 15:05 GMT

>Hi all just wondering what the appropriate oil weight would be for my
>300tdt? for my toyota diesel it was 15w40 is this correct for the
>Mercedes diesel?

10w-30 in winter - 15W-40 in summer. If it's really colds use
synthetic so the engine turns freely in cold weather. If it's
really cold you can use 0W-something oil.

>Also I live in Vancouver BC, should I take the car to a quicklube? I
>dislike paying huge dealer / boutique pricing for basic maintenance.

There's something in bewteen. Find an independant mechanic that works on
German cars. He'll be the one with the Mercedes, BMW and Audi's in the
parking lot.

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Need Mercedes parts? http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
1970 280SE, 72 280SE | Home pages: http://rs79.vrx.net
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Ruddy Duck - 06 Feb 2007 22:10 GMT

>> Hi all just wondering what the appropriate oil weight would be for my
>> 300tdt? for my toyota diesel it was 15w40 is this correct for the
[quoted text clipped - 10 lines]
> German cars. He'll be the one with the Mercedes, BMW and Audi's in the
> parking lot.

Thanks, no worries about cold here, we have had our few days of winter
(-8c). I doubt we'll see much more <0 degree weather here now.

I'll install some 15w40 and look for a decent shop here in Vancouver.

Thanks Tiger and Richard!

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Ernesto - 11 Feb 2007 23:19 GMT

> Hi all just wondering what the appropriate oil weight would be for my
> 300tdt? for my toyota diesel it was 15w40 is this correct for the Mercedes
> diesel?
>
> Also I live in Vancouver BC, should I take the car to a quicklube? I
> dislike paying huge dealer / boutique pricing for basic maintenance.

I'd stay away from the 10W40 as that oil doesn't have the same quality as
the 15W40 which is made for use in diesel engines with their higher
requirements. If you have a starting problem in cold weather change the glow
plugs to Bosch and/or install a block heater.

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trader4@optonline.net - 12 Feb 2007 13:12 GMT

> > 300tdt? for my toyota diesel it was 15w40 is this correct for the Mercedes
> > diesel?
[quoted text clipped - 6 lines]
> requirements. If you have a starting problem in cold weather change the glow
> plugs to Bosch and/or install a block heater.

The weight of the oil and whether it's rated for diesel use are two
different things. Valvoline makes a 10W40 that is CF rated. That's
what I use in my 300SD in winter, as the owner's manual specifies that
for below about 25 deg, as opposed to 15W40, which is OK for above 25
deg temp. When in doubt, read the manual.

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