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TDI 101 Got a simple/basic TDI question? Are you a newbie (new to the forums). Feel free to post your question here.

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Old June 14th, 2018, 09:44   #1
Dadwagon
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Location: Canton, ct
Default Did I use the wrong oil?

Hello,

I just did my first oil change and the sales technician told me to use liquid Molly 5w40 Fully synthetic in the specification on it reads VW 502 00\505 00

Looking in the manual it says to use VW 505 01

So now Iím wondering is this oil OK? It s synthetic?
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Old June 14th, 2018, 10:29   #2
drucifer
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Did it say liquid moly top tech 4100? I know that one is 505.01. I've never heard of a sales technician but with the title you'd think he'd know. There maybe other liquid moly products
that meet the spec but not that I'm aware of. If your looking for an alternative pentosin HP2 is a good choice. Stay away from 5w30 oil. Even though it may have the spec the 5w30 is known to contribute to accelerated cam wear.
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Old June 14th, 2018, 15:37   #3
Dadwagon
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i will look when i get home later- whats the difference between 505/00 and 505/01?
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Old June 14th, 2018, 16:14   #4
drucifer
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Here is the short answer. 505.01 is for your car. 505.00 is not.
505.00 is for earlier engines that had injection pumps. Your car and mine don't have injection pumps. Our cams have extra lobes to run the unit injectors. More cam lobes equal thinner and weaker cam lobes. The PD motors, (bew,brm, and bhw) are picky about the oil they get.
If my bew was 2 quarts short and all I had was 505.00, yes I'd use it. Other than that use the oil
that was meant for your car.
Many many threads about this.Use the search engine of your choice and let your eyes glaze over. Somebody may come along and tout the atributes of rotella t6 but I have no experience with that. But again if I needed oil and that was all that was available I'd sure use it. It's not like anybody is trying to preserve their warranty on a 14 year old car.
One last thought Generally vw oil is backward compatible there is an exception. I just can't think of it at the moment. Maybe someone will help out.
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Old June 14th, 2018, 18:25   #5
MichaelB
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Just out of curiosity is a 2004 Jetta a PD?
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Old June 14th, 2018, 18:49   #6
drucifer
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All North American TDIs in 2004 came with a PD.
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Old June 14th, 2018, 19:52   #7
MichaelB
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Quote:
Originally Posted by drucifer View Post
All North American TDIs in 2004 came with a PD.
Cool, I thought they were ALH my bad. I learn something new every day
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Old June 14th, 2018, 21:02   #8
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Quote:
Originally Posted by MichaelB View Post
Cool, I thought they were ALH my bad. I learn something new every day
IIRC - 2004 is the year they started the PD engines... 2003 and older weren't.

At least from what I remember from my first VW TDI it was a 2004 PD-BEW engine.
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Old June 14th, 2018, 22:20   #9
Dadwagon
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So is it ok to go the 5k miles interval with this oil.
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Old June 15th, 2018, 03:07   #10
Tdijarhead
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Quote:
Originally Posted by Dadwagon View Post
So is it ok to go the 5k miles interval with this oil.

Probably, but the PD engines have a week cam design, and the reason for the 505.01 oil is to try and keep the cam in working shape for as long as posssible.

If this were my car knowingly having the wrong oil in there would bug me and I would have to change it.

And the interval is 10k.
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Old June 15th, 2018, 03:41   #11
oilhammer
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5w40 505.01 oil, a good filter (Mann, Mahle, Hengst), 10k mile service interval.

Do that, and your engine (and everything in it, including its camshaft), will last a very, very long time.

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