Do VW's REQUIRE synthetic oil? - VW Forum :: Volkswagen Forum
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post #1 of 10 (permalink) Old 10-12-2009, 06:07 PM Thread Starter
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Do VW's REQUIRE synthetic oil?

Is it necessary to only use synthetic oil in a 2000 VW Jetta or is the ordinary oil that is used in every other car good for it as well? Only reason I ask is somebody once told me that these vehicles must have synthetic oil but I cannot find that on the internet anywhere
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post #2 of 10 (permalink) Old 10-12-2009, 07:49 PM
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VW specifies synthetic oil for all models 2004 and up. Synthetic is also specified for ALL turbo engines.

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post #3 of 10 (permalink) Old 10-12-2009, 09:06 PM Thread Starter
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So a 2000 Jetta with a 2.0L can use normal oil?
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post #4 of 10 (permalink) Old 10-12-2009, 11:32 PM
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Yeah but my friend switched to synthetic in his 2.0 from 125,000 miles of regular and he said it idles better and has much smoother acceleration among other things.

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post #5 of 10 (permalink) Old 10-12-2009, 11:40 PM
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Quote:
Originally Posted by TTTurbo1.8T View Post
Yeah but my friend switched to synthetic in his 2.0 from 125,000 miles of regular and he said it idles better and has much smoother acceleration among other things.
The exact opposite happened for me...I switched to synthetic and my car threw a CEL and idled horribly. Went back to 10w-30 every 3k miles and all has been well.


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post #6 of 10 (permalink) Old 10-12-2009, 11:42 PM
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For older high mileage engines Sythetic Oil tends to leak easier in my experience. If you have ever switched from regular to sythethic -all of the sudden gaskets and seals will start to weep that were not before. I believe it is due to the blocking nature of regular versus the cleaners in the sythetic. If your engine is porus, sythetic will find its way out.

If you got a high mileage clunker put high mileage non synthetic in it unless you want to be a bleeder.

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Last edited by Ninja Please; 10-12-2009 at 11:43 PM. Reason: spelling again dammit.
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post #7 of 10 (permalink) Old 10-12-2009, 11:51 PM
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All new VW motors have a valve that gets clogged because of the clogging properties of non-synthetic, also because of that turbo motors NEED that thinner/finer oil because they are oil cooled

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post #8 of 10 (permalink) Old 10-13-2009, 12:24 AM Thread Starter
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Okay thanks guys

The current owner of the vehicle said she used to use synthetic oil but has recently switched to the non-synthetic oil as recomended by the shop

I don't like synthetic because it does tend to leak easier but I just want to use whatever oil the VW engines prefer
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post #9 of 10 (permalink) Old 10-13-2009, 11:16 AM
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Any 1.8 or 2.0 T should have synthetic to insure a long engine life. You may use conventional oil, the drawback is it and the filter have to be changed so often it is much cheaper to use synthetic oil. In typical VW fashion they got cheap and only used a tiny oil sump and tiny oil filter. Using a Mann MK 2 diesel oil filter also helps on the 1.8 T. It also needs to be changed more often than VW recommends. It is good for any 98 and up VW as you can use it longer and that keeps down maintenance costs. Switching to synthetic does not turn on the CEL. Use a top rated synthetic oil. Some of the popular name brands are barely a step above conventional oil. There are several independent synthetic oil tests out there so make your own informed choice. Another big problem is VWs free oil changes that are scheduled to far apart and since the dealer foots VW generosity some dealers often use the lowest cost conventional oil they can find. I have seen hundreds of 1.8ts that with only 40-60k miles on them have a few pounds of oil sludge in them with perfect documentation of oil changes. I have customers who did not go back for VWs free engine destruction oil changes I changed their synthetic oil when it changed color about every 5-7K miles with over 100,000 miles on many of them the engine internals are still clean. The above comments are based on observations of the thousands of German cars that were serviced at the shop.

Last edited by perrib; 10-13-2009 at 11:19 AM.
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post #10 of 10 (permalink) Old 11-11-2009, 02:54 AM
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Yes, vw passat parts does require synthetic oil. VW recently updated their oil requirements due to recent 'oil sludge' issues that have been claiming many 1.8t motors at their expense. They have extended the powertrain warranty to cover these as well as both increased the size of the oil filter (in an attempt to increase oil volume) and switched to synthetic.
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