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Volkswagen Passat: 1998-2005 (B5) Oil Grade for 1.8 Turbo Engine.


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Last Post: Jul 22, 2014 1:01 PM Last Post By: scharnowski
GLInick

Posts: 3
Registered: 12/09/03
Oil Grade for 1.8 Turbo Engine.
Posted: Nov 23, 2002 10:13 PM
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Hello,

I have a 2000 Passat with the 1.8 Turbo engine. It has a manual transmission. I have approx. 28,500 miles on it.

I have recently started changing the oil at an independent mechanic that's a little closer to where I live.

I have just had the oil changed for the second time at this mechanic. And here are some of the things he did that were a little different from what I expected:

1 -> Told me to change the oil every 3,000 (instead the recommended 5,000 miles); I am not uneasy about that, but I am really wondering if it's overkill. (there is probably some conflict of interest there, because an oil change on this car involves removing some stuff and they can charge a little more for an oil change that way).

2 -> He used 20W50 grade both times -- he said there is a bulletin on the oil requirements of this engine; He said 20W50 seals the engine better, and makes it a little quieter. I haven't noticed a (significant) decrease in the fuel consumption at this point. It would be too early to tell at this point. I think the oil was Castrol GTX so it was not synthetic, etc.

I know that the thicker oil will not hurt the engine, but I am wondering what is better in the long run.

I checked with one dealer and they countered both point 1 (every 5,000 miles is just fine); and 2 (10W30 is the oil this engine needs).

Would someone please be kind enough to elaborate on both of these points about this particular engine, and car?

I will be doing the oil changes on this car myself in the future (armed with the Bentley manual), so this will not be an issue any more. But it would be good to know.

Nicholas.

wagen8

Posts: 3
Registered: 12/09/03
Oil Grade for 1.8 Turbo Engine.
Posted: Mar 1, 2003 1:47 PM   in response to: GLInick in response to: GLInick
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Oil Grade for 1.8 Turbo Engine. Anonymous
With turbo I would use the best synthetics. Mobil 0-40 or others of
that caliber.

BartMan

Posts: 2
Registered: 12/09/03
Re: Oil Grade for 1.8 Turbo Engine.
Posted: Jul 24, 2003 11:39 PM   in response to: wagen8 in response to: wagen8
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Hi There

Just purchased 2000 GLS with 90,000km on it

I want to change the oil myself and know what to look for in lube and filter

Can this be done in my garage?, done all my other cars before
What grade of oil do you use ?
What filter brand seems best?

Just finding out about this site and will read each thread to learn what can go wrong or right.

Thanks
JoeBean

Posts: 4,697
Registered: 02/14/02
Re: Oil Grade for 1.8 Turbo Engine.
Posted: Jul 25, 2003 5:44 AM   in response to: BartMan in response to: BartMan
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Hello,
the procedure is not that complicated, and not much different from the procedure for any other engine. They suggest replacing the gasket on the oil filler plug, though I don't know if that is truely necessary or not. Also, the plug gets torqued to 22ft-lbs, the vehicle will take 3.9L, recommended oil is anything conforming to API-SJ or SL, 5w-40 or 10w-40. Finally, after restarting the car don't touch the accelerator (gas pedal) until the oil pressure warning light goes out.

Terry
gudgerz

Posts: 6
Registered: 12/09/03
Re: Oil Grade for 1.8 Turbo Engine.
Posted: Oct 18, 2003 11:06 AM   in response to: GLInick in response to: GLInick
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Nick,

Hopfully you continue to monitor your request, since this reply is not timely. I was reviewing old requests and saw your questions on oil change frequency and viscosity. You have good questions and the answers to these are always controversial. With years of experience in engine maintenance on cars, airplanes, tractors, and boats, I also have questioned how best to take care of all my engine(s).

My experience and research has led me to understand that driving conditions (i.e., environmental effects, engine hours), length of time (calander days) between oil changes dictate the necessary adjustments to the mfg recommended frequency. I have been changing oil at 5,000 mile frequency intervals since the 1970's in all the automobiles that I have owned (note, not always following the mfg recommendations). But what matters most is that I have obtained over 200,000 miles on each car owned with this maintenance practice (e.g., 1972 Datsun 240Z, 1972 Chev P/U, 1984 Datsun Maxima, 1985 Toyota P/U, and a 1994 Chev Suburban). I closely monitored gas milage, engine performance, and corrective maintenance history, for feedback along the way. Performing my own maintenance has kept me in tune to any signs or indications of related trouble. Additionally, not only gaining the valuable experience/feedback along the way, none of the automobiles required any internal engine repairs or major maintenance as a result of this practice. However, it is important to always monitor for new information by reading/researching others (filtering for the reputable/creditable ones) who share advice and experience, and then check/adjust when there is technical basis. I drove these cars regularly and did not have to consider or perform 12 month interval oil changes which is another practice I believe in. I still own the Toyota and Suburban along with a 2001 Pontiac, and most recently the 2003 Passat. It has only been recently that I now change the oil in the Suburban each fall (12 months v/s 5,000 miles) because we are not routinely driving it enough. Lastly, I have always changed the filter and used Castrol 10W30 during each oil change in these vehicles.

The reason behind the oil change frequency is to limit damaging effects from particulate (environmental effects and engine wear products) and maintianing the viscosity (oil wear and aging) for the temperature protection it affords. More importantly flushing out the corrosive acids that build up internally due to moisture (temperature/humidity cycles) combining with combustion biproducts from piston blow by. Changing oil more frequently is a conservative practice, but I believe overly wasteful for the benefit gained. The recent engine engineering (and more probably from the same experience that I have gained) has caused the mfg's to start recommending the 5,000 mile interval.

Hope my 2 cents worth helps, and I do believe following the mfgs recommendation as a minimum should be considered first and foremost for protecting the engine and maintaining your warrenty valid.
originalmix

Posts: 3
Registered: 12/09/03
Re: Oil Grade for 1.8 Turbo Engine.
Posted: Oct 19, 2003 10:58 AM   in response to: GLInick in response to: GLInick
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Hi I own a 99 1.8 Turbo and here in the UK we use quantum 5W40 semi-synthetic.it goes well.
scharnowski

Posts: 4
Registered: 10/23/03
Re: Oil Grade for 1.8 Turbo Engine.
Posted: Oct 23, 2003 11:32 AM   in response to: originalmix in response to: originalmix
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I run Mobil 1 10W30 in my US Passat 1.8T and change at the factory interval of 5000 miles. In Europe the oil change interval is much longer due to the high cost of oil and environmental concerns. The VW filters indicate a 30,000KM interval.

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