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  #1  
Old 09-20-2004, 08:09 PM
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Did my first Synthetic Oil Change.... Rotella Synthetic 5w-40

What's up....

Today was the first time I put synthetic in my 240D. I even went to Wal-Mart on a mission to find all the synthetic oils. I first put 8 quarts of MOBIL 1 with red cap in the shopping cart and then as I was walking through the isle I noticed Rotella Synthetic at 12.99 per gallon. Wow is that a bargain for an oil brand that I have been using all the time. For the last 20,000 miles only Rotella regular went into the car. The grade of the oil is 5W-40 so it is perfect for those cold winter starts... If I have been changing the oil on my car religiously at 3,000 mile intervals what would be a good schedule since I have gone to synthetic ?

As I was reading the one trillion oil threads here I noticed that most will use MOBIL or DELVAC as opposed to ROTELLA. Is there something with ROTELLA that many are staying away from it ?

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  #2  
Old 09-20-2004, 08:15 PM
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Rotella is not a full synthetic like the Mobil, and that's why it is more expensive than the regular "dino" oil but cheaper than the Mobil 1. Nothing wrong with the Rotella- I did use that stuff first and then changed to Mobil 1.
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  #3  
Old 09-20-2004, 08:19 PM
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Rotella

Some of us have started using Rotella synthetic, including Dave and myself, because it was attractively priced. However, if you look into the details of the oil, and I won't go into it here, the Rotella is a Group III synthetic that is not up to the performance level of the Mobil 1 which is a group IV synthetic.

Now, whether you really need a group IV synthetic is a different story altogether. The group IV oils will typically allow you to go further between oil changes. However, with your engine, this may not be possible in any case due to the amount of soot that it produces.

I will probably continue to use the Rotella in the 617 because I will definitely change it every 5K. Now, the 603 can probably go longer than 5K, and, it has lifter noise, so I will likely switch it to the more costly Mobil 1.
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Old 09-20-2004, 08:22 PM
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About a year ago I also switched to synthetic oils. Differential and engine at least. A couple months ago I changed autotransmission fluid and filter and went with the Mobil 1 there also. All seems good and for whatever reason I feel more confident. Though I haven't put enough miles on in the one year period, I am going to change engine oil & filter again before the winter hits.
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  #5  
Old 09-20-2004, 08:29 PM
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I do all highway miles at the rate of about 500 miles a week. So I'm kind of thinking like you guys at going to 5,000 miles between changes.


oh yeh....can I get mobil 1 with the red cap in a big jug ? I only seen the 10w-30 and 5-w30 in the big jugs but could not find the 15w-50.... what's up with that ?
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  #6  
Old 09-21-2004, 12:14 AM
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Talking

Kamil,

Try another wal-mart; although you really want DELVAC 1 5W40 (at w-mart)
packaged in quarts as "Mobil 1 Truck+Suv". ( you will not like the price,but
the quality and LONG term performance/protection are without equal )
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  #7  
Old 09-21-2004, 11:42 AM
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Go all the way , Walmart isn't to bad on price I think I paid $4.62 a quart, for the Delvac.
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Old 09-21-2004, 04:11 PM
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Funny you should mention it, I just changed over to synthetic last night. I went with Amsoil 15W40. I have always been a Delvac 1 guy for diesels, but I have read good comments on the Amsoil. The price helped as well - I paid $18 gal vs. $22 gal for the Delvac 1. I will continue with Delvac for my Jetta since it only takes 1 gal and that is what it has always had. Also, I saw the yellow cap Delvac 1 at Wally World as mentioned in earlier threads. It says it is Truck & SUV Mobil 1, but has all the diesel ratings. It was $4.75 qt or something like that. Actually cheaper than buying a gallon of Delvac 1. Interesting. Do I dare trust that it is Delvac 1 and use that on the jetta next time??
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Old 09-21-2004, 04:39 PM
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Quote:
Originally Posted by hockeynut
Funny you should mention it, I just changed over to synthetic last night. I went with Amsoil 15W40. I have always been a Delvac 1 guy for diesels, but I have read good comments on the Amsoil. The price helped as well - I paid $18 gal vs. $22 gal for the Delvac 1. I will continue with Delvac for my Jetta since it only takes 1 gal and that is what it has always had. Also, I saw the yellow cap Delvac 1 at Wally World as mentioned in earlier threads. It says it is Truck & SUV Mobil 1, but has all the diesel ratings. It was $4.75 qt or something like that. Actually cheaper than buying a gallon of Delvac 1. Interesting. Do I dare trust that it is Delvac 1 and use that on the jetta next time??
The Truck & SUV oil is the same exact oil as Delvac1 and uses the same MSDS sheet, I am on the second oil change using it in the '02 Jetta, and have put it in the MB and plan on doing an oil sample test at about 4500 to 5000 mile mark to see how soot and everything else is doing. Also these EGR equipted early MB's do not put as much soot into the engine I am told by several mechanic's, because they were not designed to recirc as much gases and probably most are not even working unless they have been kept up with.
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  #10  
Old 09-22-2004, 12:14 AM
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next time i'll go mobil 1 or delvac 1
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  #11  
Old 09-22-2004, 12:14 PM
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Nothing wrong with Rotella T "Synth"

I ran this in my last interval, for ~4,000 miles from March to August in SoCal-

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=26;t=000129

Wear was OK. Only gripe was that the oil thickened to a low 50 weight fairly quickly. Personally I didn't think this oil was worth $13/gal- it doesn't offer any advantage over conventional oil for my use. Soot will get you regardless of group II, III, IV oil. I'm now running Delvac 1300S (which carries MB's 228.3 approval), at $6 a gallon.
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  #12  
Old 09-22-2004, 12:24 PM
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Quote:
Originally Posted by Ler
I ran this in my last interval, for ~4,000 miles from March to August in SoCal-

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=26;t=000129

Wear was OK. Only gripe was that the oil thickened to a low 50 weight fairly quickly. Personally I didn't think this oil was worth $13/gal- it doesn't offer any advantage over conventional oil for my use. Soot will get you regardless of group II, III, IV oil. I'm now running Delvac 1300S (which carries MB's 228.3 approval), at $6 a gallon.
They were both group 3 oils and Mobil 1300 has less soot capabilities then the Delvac 1/Truck & SUV oil. Next time for a better and more detailed oil sample go to AVLube
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  #13  
Old 09-22-2004, 12:34 PM
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How can it go for 100,000 miles ?? Is that possible ?

This is what I got from that website about MOBIL 1 DELVAC 5w-40 and I'm confused as to wheather it can hit 100,000 miles.



Quote:
Mobil Delvac 1 full synthetic 5W-40 diesel engine . Shipped in a case of 4 one gallon containers. Simply the finest diesel engine oil, providing a full 40 weight oil thickness protection and a super additive package capable of providing oil change intervals of up to 100,000 miles for over the road trucks! Delvac 1 flows to 65 degrees BELOW zero, enabling instantaneous cold weather starting and oil flow yet does not thin out with high temperatures. You will be amazed with the instantaneous starting with Delvac 1 and its overall performance!
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  #14  
Old 09-22-2004, 12:46 PM
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forget it

At 100,000 miles, your 616 will have turned that oil into paste due to the soot contamination.
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  #15  
Old 09-22-2004, 01:19 PM
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You guys who don't know about oils and big rigs.

Serious now, here is what they are talking about. In the over the
road trucks with the by-pass oil filters that filter down to less then 5 microns, and most paper element oil filter are in the 20 micron range that are used in auto's. Believe me that Cat or Cummins big block diesels will put out more soot then our little auto diesel's ever will.

The newer diesel oils like Delvac 1 and even none synthetic oils like Delvac 1300 that was designed with soot retention in the oil so as to be filtered out really works.

The oil sample's from Delvac 1 at 10,000 miles is always so good in the Dodge Cummins powered PU down to our little 1.9 VW & 3 liter cars as to be able to often go 20,000 with out oil change. Most will just do a filter change at 10,000 miles. Also remember these are cars & trucks that are getting all their miles running down the highway, not stop & go city driving.

I've done 2 oil sample test at 10,000 miles on two different VW diesels and both came back with far better reports then the two test above, and were said good to go till next check in another 10,000 miles and the car's were 50/50 city & highway.

I plan on doing a sample of the MB's oil at about 4000 miles and will only change the oil if required by the sample, I will change the filter though at the very least.
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