no more mobil 1

[vdubbugman53]

http://forums.vwvortex.com/zerothread?id=2115738

chack it out

[GatorBeetle]

Interesting...also found a reason explained for not going from Dino to Synth on a high mileage car...always wanted to know why it was not recommended...

Those same detergents are the problem with switching oils if you have a high mileage engine (say above 70K). Old engines have FALSE seals that have to do with the crud that builds up around the rings and prevents oil from leaking out. When you introduce synthetic oil to an engine that has been running dino oil all those years... well it either breaks or leaks around those false seals. 1.) the detergents break the seals and 2.) synthetic oil is so slick that it can get in places that conventional dino oil can not.

Cool, that answered a question I have had for a few years!!

[detailstation]

I guess that's why there is so many oils to choose from and different makes of cars and different kinds of everything.The bottom line is that most oils that are made meet or exceed all manufacturers specs,its up to you to choose witch one you use.

[Lmhansen]

Before you do, make sure you understand that this is a case study, and not scientific evidence of anything. It's one car, one engine and two oils.

edit: corrected markups from html to vbcode.

[GatorBeetle]

I don't use either oil...so it isn't really a matter for me...just interesting.

[Fowvay]

What I find most interesting is how they just throw terms around with out knowing thier meanings. Such as certain chemicals that are more prevelent in Mobil 1 vs Valvoline.

Kinda like a novice saying... Well Earth has way more Oxygen than Venus. Venus must be better.

errrr ya if You don't actually want oxygen in your blood stream its fantastic.

Read the threads over there with a suspect eye. Always question everything and do yourself a favor and don't believe everything.

I'm sure Valvoline Synthetic is fantastic, so is Mobil1 and many others. The point is that any synthetic will provide our engines with phenomanal protection for at least 5000 miles.
With some being able to go much further than that. I change em all earlier just to be safe. My way of doing it. Pick yours and go with it.

[vdubbugman53]

i actually use mobil 1 and i find my self loving it. at least more then the dino oil that i used to use. i have never a different synthetic oil. i figured that the worst synthecic oil has to be better then an ok dino oli but i could be wrong...lol i just though i would throw this out there and see what yall think

[TechnoTrix'd]

This, BTW, is not "new" information. Even though the above "test" had many flaw's the basic premise is founded.

If you have used regular dino oil, and then want to switch to "ANY" brand of synthetic, your engine will need to be professionally flushed.

Not just pressure flushed but chemically flushed. Many reasons why, some were listed in the Tex thread, most were not.

Just be aware of this for the peeps who are just buying a well loved and broken-in 98-02 beetle.

I personally run with Mobil-1, and 94k miles later, no issues. But, if you want to switch, talk with a couple of local mechanic shop's first, and spend the money for a good block flush.

TechnoTrix'd.....

[SoonerBug]

It's really funny. If you search the car, motorcycle and marine forums enough you can find "objective" tests that claim that Mobil 1, Castrol, Pennzoil, etc., etc., etc. are inferior synthetic oils and that some other one brand is far superior. Who to believe. I don't know. I use Mobil 1 in everything I own because it's easy to get and so far it hasn't caused any problems. If someone can come up with a real, truly objective test that says some other oil is really better than all the others I'll switch.

SB

[kcfoxie]

My 98 has used Valvoline dino oil it's entire 209k life. I want to move it to Castrol oil, or should i stick to the extended performance dino valvoline?

mobil-1 synth since 10,000 miles in my 02 -- bottom side of the engine looks good but i also switched at the VW appointed time, ran 10k changes from 10k to 90k and do 5k changes on extended performance 5w40 synth ... no issues, but i get at best 30MPG in my drive-by-wire; the 2.0 drive by cable's owner (original owner) says it gets a constant 31!

[lojasmo]

Bah...I just bought a '00 1.8T...unknown service history (though in FANTASTIC shape) and I filled her up with Mobil 1 (0-40) first thing.

I'm not worried.

[gilligan]

my castrol gtx oil is dino oil....Right? I hope so because I hate synthetic oil and my car just loves the stuff 3500 miles since changing the oil and the level has not dropped one drop.
knock on wood.

[scooperhsd]

Depends which motor you have and what specs the oil must meet -

The European cars 0w40 Mobil1 IS satisfactory for the '98-2003 TDI's (since it meets VW505.00), although it will not work for a 3004 or later PD-TDI (these require VW505.01 or deriviatives). However, a number of us TDI drivers use Group 3 or group 4 synthetic oils that meet API-CI-4 or later.

[vdubbugman53]

Originally Posted by scooperhsd

Depends which motor you have and what specs the oil must meet -

The European cars 0w40 Mobil1 IS satisfactory for the '98-2003 TDI's (since it meets VW505.00), although it will not work for a 3004 or later PD-TDI (these require VW505.01 or deriviatives). However, a number of us TDI drivers use Group 3 or group 4 synthetic oils that meet API-CI-4 or later.

in english please.....what is needed for my 00 AEG

[OldSkoolVWLover]

The vortex poster did good work and good research. I would run the oil he suggested, if I could find it easily. Mobil 1 isn't crap..... peronally dislike Penzoil from tests done at shops (used to have a friend that worked at an independant shop). Other than that, any premium synthetic is worth the money more or less. Kinda like people that argue the random crap gas is as good as 76 or Chevron..... yeah the petrol is technically the same, but the addatives they put in the "better" gas make it work the $2 a tank you pay to get the better fuel.

Make your choice as to what oil you use..... just research and make sure you are not running garbage, other than that, they will all give you the the same results within reason. EVERY engine is different, so one study is not conclusive, but his results are enough to make you think twice (if the oil is available to you at a competative price).

[Jian]

It seems everybody runs different oils, dino/synthetic, Mobil1, Castrol..., and umpteen others. The fact that eveybody is getting acceptable results is really interestiing. As long as the filter and oil are changed on a "regular" basis, and its the correct weight for where and how you drive. I don't think it matters what you use.

[kcfoxie]

Changing often is the key. I just put Havoline 10w30 into my 98 that has only ran Valvoline 5w30 its whole life of +200,000 miles. The lighter weight has helped it start since the fall has set in, but I'm only keeping it in there till I can get some Castrol oil. Come spring when it's rebuild, cleaned, ported and polished... mobil-1 all the way

[Jian]

Originally Posted by kcfoxie

Changing often is the key.

We have the same year and about the same mileage (182k), I'd like to compare what I'm doing with what your doing.

I run Syntec 5w-40 yer round, I switched from Mobil1 5w-30 pnly because of the cost. I use the larger M1-301 Mobil filter.

- change the oil and filter every 10k miles
- change the filter only every 5k miles.

[kcfoxie]

Well I wish I could be more helpful, I only know the car had Valvoline oil and 5k changes, I assume the filter went with the changes. I often do the filter with the oil change on good principal, but if I must run the filter 10k and the oil every 5. On my 02 since 10k it's ran Mobil-1 5w30 synthetic for 10k oil and filter, 5k oil and filter since I got it up to 100,000.

[Breez]

Just because I had heard that the 2.0 has issues with "sludge" I have been using the Synthetic Quaker State ( or is it Castrol Synthetic? LOL Im having a brain fart) that the dealership reccomends. LOL I dont know why, but I just have stuck with the recomended brand, especially after reading everyones opinions and searching on google, which makes you sometimes even more confused. So anyways, hopefully BB will still like me if I keep using it. She has not lost a drop of oil since I got her 8 months ago, and I check it once a week, so Im just keeping my fingers crossed That she is good to me like my VR6 was excellent to me over those 8 years and ALMOST 100,000 miles