Engine Type for 1997 E320 - Mercedes-Benz Forum
 
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#1 (permalink) Old 02-13-2009, 05:18 PM
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Engine Type for 1997 E320

All,
I have 1997 E320 I would like to know what is my engine type so I can use the correct Oil? Can I use Mobil 1 0W-30? I've been used Penzoil Oil 15W-40 because the previous owner had used this type.

Thanks.
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#2 (permalink) Old 02-13-2009, 05:24 PM
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Hey, Ok.

You have the 104 L6 engine, so you can pretty much use any quality oil.

If it's over 100,000 miles and always been run on conventional oil, I don't think I'd switch to synthetic, often that will cause seals to start weeping oil. Stay with a quality conventional, use the service intervals in your manual, and you get to use the cheaper paper oil filters, too.

Take care and enjoy the ride,
Greg

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#3 (permalink) Old 02-13-2009, 05:26 PM
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No you shouldn't use Mobil 1 in that engine
Bill
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#4 (permalink) Old 02-13-2009, 05:40 PM
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Hi Greg,
When do I need to change the Cabin Air Filter? I have owned my car over 3 years I never change this filter. My car is 161K miles. I have onother question to ask you too. My AC/ heater blower seems to blow very weak. I don't have enough heat for the cold weather...The blower ran fine I have tested the AC dianostic...No error. How can I fix this problem?

Thanks a million.
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#5 (permalink) Old 02-13-2009, 05:52 PM
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A filter is a cheap investment
Bill
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#6 (permalink) Old 02-13-2009, 06:13 PM
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Can I use thinner oil Penzoil 5W-40 or any other penzoil oil?

Thanks.
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#7 (permalink) Old 02-13-2009, 06:28 PM
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Why do you want to use a lighter oil? A 5 or 10/ 40 is OK. Just not synthetic like M-1. I use a blend at 10-40 in my truck as well as my wife's GMC
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#8 (permalink) Old 02-13-2009, 06:34 PM
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Quote:
Originally Posted by okiloveu View Post
Can I use thinner oil Penzoil 5W-40 or any other penzoil oil?
Yes, you can.

However a 5W-40 oil is most probably a synthetic oil and they are not easy to find. The Pennzoil 5W-40 you mentioned is probably the Pennzoil Synthetic European Formula 5W-40 and is not widely available.

The Pennzoil 15W-40 you are using is probably their universal oil that is for both gasoline and diesel applications (with API Sx/Cx). This is an excellent oil for your engine. If you search around, there are other members and myself (1997 E320) use various 15W-40 in the M104 engine. The brand could be Chevron Delo, Mobil Delvac, or Shell Rotella.

I do not know where you live. If you are not in a very cold area, the 15W-40 is perfectly fine and you can run a 5000 - 7500 mi change interval or 6 - 12 months, depending on your comfort level.

If you do live in a cold climate (as where I am) and want a thinner oil, there are various 10W-40 oils you can use. The Vavoline MaxLife is highly recommended. Or if you like the diesel oil (they tend to keep engine clean due to the extra detergent and additives), Shell Rotella comes with a 10W-30 and it is slightly thicker than most other 10W-30 oils. Most High Mileage 10W-30 oils are also a little thicker than the usual 10W-30s. I would stay with a XW-40, though.

Basically, that engine will not have oil related issues if you use a reasonably quality oil and change at reasonable intervals.

The reason many people do not recommend a thin Mobil 1 type of synthetic oil xW-30 on this engine is because the engine tends to leak oil. Mercedes have updated the head gasket many times but some still leak and more often is the leak coming from the front timing cover.

If you do have a leak (I hope not), Mercedes actually released a TSB for this. When you fill the engine with oil, do not fill more than half way between MIN - Max. In another word, just keep it a little below the half way mark between MIN - MAX and the leak will be much slower.

Last edited by loubapache; 02-13-2009 at 06:39 PM.
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#9 (permalink) Old 02-13-2009, 06:59 PM
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I live in Virginia...A little cold climate...last month the temperature was 16 in the morning...If I want to stay with 15W-40, can I use other brands that you mentioned in the previous email or I have to stay with Pennzoil?

Thanks
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#10 (permalink) Old 02-13-2009, 07:09 PM
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Your temp is mild compared to us.

Almost any oil manufacturer makes a universal oil in 15W-40 that can be used in both gasoline and diesel engines of your car's vintage. They are all good. In additional to the popular ones ones I mentioned earlier, Vavoline, Castrol, Havoline, etc. all have a 15W-40 oil. If you want to stay with Pennzoil, that is fine too.

In the winter, you can use 10W-40 but the difference is really kind of small. The new 15W-40 oils are good bargains because, in order to meet the latest API CI/J-4 specs, the required base oil is of a higher quality.

There are many threads like this on various Mercedes forums so if you do a search, you can probably read for a few days.

Last edited by loubapache; 02-13-2009 at 07:29 PM.
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