My wife drives a non-PD TDI....Had run Delvac 1 in it most of the time, tried a change of RTS, and last 2 changes have been Schaeffer's 9000 5w-40. I had thought about going to Amsoil 5w-30HDD for the winter but it seems like these engines throw a lot more iron with a 30wt oil vs. 40. So now I am thinking of trying a 10K run of the John Deere 0w-40 thru the TDI and then I can add it to my little database of UOAs on it to see which works the best consistently. Maybe I will settle on an oil before we wear the car out! Just wanted to see if anyone had had any experience with it in passenger vehicles before....I am using it in my loader tractor that gets started every morning in the winter.
John Deere Plus 50 0w-40 in TDI?
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The JD oil is one of the best out there. Use it with confidence.
I think you will find the JD oil made by Chevron/Conoco.
Why not continue to run the Schaeffers 5w-40?
Why not continue to run the Schaeffers 5w-40?
For one thing, I have to order the Schaeffer's in relative bulk (case) to even bother with it. Also, I have a bunch of 0w-40 Deere oil sitting here for my tractors anyways to be used and don't need a case of 9000 on top of it.
Probably the main reason is that we have had noticably reduced mileage running the 9000 vs. Delvac 1. I don't know if it has anything to do with the remarkably high HTHS spec on this oil or what--seems like there is a lot of evidence to suggest that higher HTHS spec oils hurt fuel economy to some extent, and a few percentage points drop show up big time on a 40 MPG care. From the day we put the 9000 in, the wife has never managed 40 MPG on mostly highway miles, when ~42 is the norm. It is really the only variable--car got new tires during the first Schaeffer run and was aligned, no help. Has new air filter, tires pumped, etc. We run the same fuel every tank, same fuel additives. Everything is tuned and running right.
I am going to give the Deere oil a shot and see if the mileage doesn't perk up some, of course now we are going to be running into winter fuel and whatnot so it won't be apples to apples.
Probably the main reason is that we have had noticably reduced mileage running the 9000 vs. Delvac 1. I don't know if it has anything to do with the remarkably high HTHS spec on this oil or what--seems like there is a lot of evidence to suggest that higher HTHS spec oils hurt fuel economy to some extent, and a few percentage points drop show up big time on a 40 MPG care. From the day we put the 9000 in, the wife has never managed 40 MPG on mostly highway miles, when ~42 is the norm. It is really the only variable--car got new tires during the first Schaeffer run and was aligned, no help. Has new air filter, tires pumped, etc. We run the same fuel every tank, same fuel additives. Everything is tuned and running right.
I am going to give the Deere oil a shot and see if the mileage doesn't perk up some, of course now we are going to be running into winter fuel and whatnot so it won't be apples to apples.
PAO based synthetics have a lower coefficient of "intrafluid" friction than Group III based oils. In addition, fuel efficiency is inversely related to HT/HS viscosity as you've observed.
For the wintertime, I'd use the Amsoil 10w-30/ACD if you want a reasonably priced, low viscosity synthetic. This product has been on the market since 1975 and is extremely well proven. A xw-30 will perform better than an xw-40 in terms of fuel effiency, since it has a significantly lower viscosity even under steady state conditions on the highway....
The Amsoil 10w-30 is basically a lower viscosity version of their 15w-40/AME product and offers excellent wear protection and long service life.
TS
For the wintertime, I'd use the Amsoil 10w-30/ACD if you want a reasonably priced, low viscosity synthetic. This product has been on the market since 1975 and is extremely well proven. A xw-30 will perform better than an xw-40 in terms of fuel effiency, since it has a significantly lower viscosity even under steady state conditions on the highway....
The Amsoil 10w-30 is basically a lower viscosity version of their 15w-40/AME product and offers excellent wear protection and long service life.
TS
Keep in mind that changing tires may also affect your mileage. I lost 3-4 mpg after switching from the LRR tires on my TDI to another brand. Nothing else was changed. Just last week, I put the original tires back on my car (as a test) and got 835 miles out of that tankful. My mileage is back and no other changes were made.
Tires didn't matter to our car when we changed, it got worse once we put the Schaeffer's in, and the new tires and alignment didn't help.
If I were going to use a 30wt oil I would probably use the 5w-30HDD as it is supposed to be Amsoil's premier basestock/add pack!?!? It seems like TDIs throw more iron with 30wt oils so I thought I would stick with the 40, since most trips are long and when the car is warm. If it was a 5 mile trip each way to work for her, I would probably lean with the 30wt.
If I were going to use a 30wt oil I would probably use the 5w-30HDD as it is supposed to be Amsoil's premier basestock/add pack!?!? It seems like TDIs throw more iron with 30wt oils so I thought I would stick with the 40, since most trips are long and when the car is warm. If it was a 5 mile trip each way to work for her, I would probably lean with the 30wt.
People who didn't start out with LRR tires usually see no mileage difference. That sounds like your situation. A friend here in our local TDI group uses the Amsoil 3000 5W-30 and is quite pleased with it. I have never used (and won't) a 30-weight in my TDI. My Fe numbers have been excellent with 5W-40. No reason to change.
If I ever switch from Delvac 1, I'll likely try the Schaeffer's 9000.
If I ever switch from Delvac 1, I'll likely try the Schaeffer's 9000.
LRR-Low Rolling Resistance
There really is something to these types of tires. On my TDI they offer much better mileage.
http://www.jdmsds.com/JDCMSWeb/ProductSearchServlet
Esso/imperial mineral oil blend(group III).
http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB11&Number=473321
There is at least 1 UOA of this oil on this board(unless lost during crash/update). I just can't find it. And, old links don't work. I vaguely remember that it didn't perform too well.
If you use this oil, run a 3k run/rinse prior to using it for the full 10k UOA run.
Esso/imperial mineral oil blend(group III).
http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB11&Number=473321
There is at least 1 UOA of this oil on this board(unless lost during crash/update). I just can't find it. And, old links don't work. I vaguely remember that it didn't perform too well.
If you use this oil, run a 3k run/rinse prior to using it for the full 10k UOA run.
After reading the links, it makes me a little nervous to run this oil. I think I am going to send in a VOA to be on the safe side. All the MSDS sheets I got were Canadian and showed ESSO to be the manufacturer, when I believe Chevron makes this product in the US? Wish it was PAO based, would make me feel better about the wider viscosity spread over 10K miles.
UnDummy: Out of dumb curiousity, why do you recommend a 3K run and rinse prior to the 10K UOA run? Just to get the Schaeffer's out completely so the Deere oil sample is pure?
UnDummy: Out of dumb curiousity, why do you recommend a 3K run and rinse prior to the 10K UOA run? Just to get the Schaeffer's out completely so the Deere oil sample is pure?
I don't believe that I can get ahold of any Esso XD3, but I don't think the stock I have of the Deere oil is Esso anyways. It appears that Esso is their Canadian supplier whereas Chevron is the US supplier. I would assume that if the Canadian version is GIII that it would be safe to assume the same for the US version.
I sent a VOA off Friday for the stuff I have to see how it comes back in terms of add pack. I did not like the discrepancies reported in the linked post above from a previous VOA.
I think that if Deere is recommending the kind of interval they are with this oil in $20,000+ engines, and covering them with a warranty, it probably is pretty decent stuff. The best? Maybe not, but probably right up there. High TBN, stout AW package, and perfect viscosity range for my area, I think it is worth a shot. I bought a crapload of it for 3.00 a qt. off Ebay so I don't have a ton of $$$ in it.
I sent a VOA off Friday for the stuff I have to see how it comes back in terms of add pack. I did not like the discrepancies reported in the linked post above from a previous VOA.
I think that if Deere is recommending the kind of interval they are with this oil in $20,000+ engines, and covering them with a warranty, it probably is pretty decent stuff. The best? Maybe not, but probably right up there. High TBN, stout AW package, and perfect viscosity range for my area, I think it is worth a shot. I bought a crapload of it for 3.00 a qt. off Ebay so I don't have a ton of $$$ in it.
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