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[matt]

  Came across this site associated with edmunds

 
"Stop Changing Your Oil   - Breaking the 3,000-Mile Habit"

http://www.edmunds.com/car-care/stop-changing-your-oil.html?mktcat=maintenance-article&kw=stop+changing+your+oil&mktid=ob61762858&msite=w

The article has toooooooooooo many words just to say the following: ..
Oil technology has changed enormously over the last 30 years making the 3,000-mile oil change unnecessary in nearly all vehicles.
 Among 2010 models, the average recommended oil change interval, based on a normal service schedule, is about 7,800 miles (The longest oil change interval is 20,000 miles, for all Porsches. The shortest oil change interval is 5,000 miles in some late-model Toyota's)

"Oil has changed quite a bit and most of that isn't transparent to the average consuming public," said Robert Sutherland, principal scientist at Pennzoil Passenger Car Engine Lubricants. Synthetic oils, such as the popular Mobil 1, are stretching oil change intervals, leaving the 3,000-mile mark in the dust. "The great majority of new vehicles today have a recommended oil change interval greater than 3,000 miles," said Mobil spokeswoman Kristen A. Hellmer. The company's most advanced synthetic product (Mobil 1 Extended Performance) is guaranteed for 15,000 miles.

Wondered how this applies with bugs, no oil filter, not high engine tolerances.. etc so there is the below site...pretty cool

         http://www.blackstone-labs.com/

  Very good site that does oil analysis, evaluates if you changed your oil too soon - how  many more miles you could have gone, how many too far gone...,  tests for gas, other fluids, metal etc in your oil - gives some example reports. Test analysis is pretty cheap  -  $25.00 (OF course if I was Mr. $$ I would have to send them the exact same oil sample 3x, 3weeks apart to see if the results are the same).

Tests various fluids from various machines.

Thought this would be of interest to some.

M



Matt

[VWPANZER1]

  Remember Flat tappet camed motors need more Zink, which for emission purposes, have been greatly reduced in today's automotive oils.

   You can add a zink addatives or use motorcycle oils (VW engines are nothing but 4 cylinder Harleys).

[matt]

 That is intertersting Joe, I was up at Carlisle this past weekend and saw a few signs of
"Got Zinc?" - or something like that. Maybe I should have stopped by the booth to learn more...

Going up to the amazing Hershey Car show this weekend... probably will see the same there, I will check it out.....

  Matt

[kvbug (karen)]

Interesting information, thanks Matt.

Ahhh... doing a lot of non club related  car shows are we???     :confused04:;

[Soul Rebel 67(Ramon)]

My thing is, i change my oil every 1000 miles driven. When the oil starts turning black instead of transparent, its time. For an oil cooled motor such as VWs, its very important to keep fresh oil in the case. So far i changed my oil 3times this summer and getting ready to change it again before Nov. It makes ur motor last forever!

[3Gear]

If you get your oil leaks set just right, you can add a quart every month or so and never have to change it!!!



#@rofl3

[lovebus (jack)]

Everyone seems to have their own take on motor oils and you can read article after article till your head is spinning. I cant count how many times this subject has been brought up on this forum but it has been many.

Soooo, I will throw in some more for you, and read all the links on this post that I posted in 2010 under "Articles" on the tool bar. The aricle is called " Engine oil, everything you need to confuse you (-;"

http://www.sjvwc.net/forums/index.php?action=articles;sa=view;article=18

[Baha (Shawn)]

Boy is this a loaded question! And one of my favorite  {_^soap

I am a staunch Brad Penn #1 Oil Fan

Back in the day, I used Kendall oil. I was really good oil. Everybody ran Kendall in their race cars.

When I got back into VW's a few years back, I heard less than favorable reviews of Kendall. It turns out that the Kendall name was sold, and the formula was changed.

The refinery that made Kendall still exists and it still produces the oil that used to be Kendall under the name Brad Penn.
I swear by the stuff for my VW's. Very high in Zinc  http://www.penngrade1.com/Zinc.aspx

One other thing....  payatten*

Jack used to own a VW Repair shop. A 1/2 bottle of STP is Jack's prescription for a happy engine.

He's been doing that since before I was born.

I had a chronic lifter tap in my Syncro and on Jack's advice I added a 1/2 bottle of STP. Within 5 minutes the noise went away and I haven't heard it since.
That was almost 4 years ago.

If I had to give up one or the other.... I think I'd have to keep the STP. (I could add zinc to another good oil)    Glad I don't have to

[kvbug (karen)]

 &$hmmthin_+    (hail-   doublethumb

[matt]

  Wow Ramone, that is a lot of oil changes!... it would be interesting to send your oil, once drained to the company for analysis to check for breakdown. I've read just because the oil is black does not mean it has lost its' lubrication properties, again the tests would show that. I know everyone has an opinion on when oil changes are needed, but thought it was neat to have a company to give an accurate analysis on that opinion.

   For me, with Bob, I wonder if I have to change oil more frequently as I know the carb bowl of gas drains out, and must go to my oil. When Bob sits for a while, many cranks of the engine are needed to fill the bowl before he starts.. so even with the bowl empty, I wonder if gas still trickles in past the fuel pump(?) ( does the pump have to be in the open position or something like that?) and into the engine oil.  When he was delivered, and on a steep slant on the truck carrier, the entire gas from his gas tank drained into the engine block.. bugey--

 M

[buglvw (Howard)]

Matt

If VW fuel pumps have diaphragms, I think yours might be cracked  2@cent

[lovebus (jack)]

It's a wonder the fuel pump hasn't let you down by now, a rebuild is in order.

[matt]

#9

http://www.thesamba.com/vw/forum/album_page.php?pic_id=809634

    





 I carry 2 extra fuel pumps cause one of them prob would not work... you know how that goes.........




 OOoops!  I thought Howard was being sarcastic... as if VW pumps do not have a diaphragm and I was crazy.....and Jack was following.... hard to tell with this group.

  I think it is something inside the carb. Steveo had the same problem and when he had his carb rebuilt the problem stopped... have to recheck....

M

 back to W--K work!



               

[Baha (Shawn)]

I had the diaphragm go on my fuel pump and the crankcase filled with gas. Fortunately I was parking when it happened.

Your carb shouldn't move fuel into the cylinders when the engine isn't running Matt.

I would like to point out that Jacks electric fuel shutoff would keep fuel out of the engine while the car sits. You could switch it off and run the carb dry.

[buglvw (Howard)]

#9

http://www.thesamba.com/vw/forum/album_page.php?pic_id=809634  

Matt,

I wasn't being sarcastic. I don't know much about VW fuel pumps. Them Germans have their own way of doing things.
When I was a teen you could tell if someone had a bad fuel pump because white smoke would pour out the exhust. The oil would splash up from the crankcase thru the diaphragm and into the gas. So I thought if oil could get up gas would be able to drain down. You know what they say about assumptions.  



              

#9

http://www.thesamba.com/vw/forum/album_page.php?pic_id=809634

    





 I carry 2 extra fuel pumps cause one of them prob would not work... you know how that goes.........




 OOoops!  I thought Howard was being sarcastic... as if VW pumps do not have a diaphragm and I was crazy.....and Jack was following.... hard to tell with this group.

  I think it is something inside the carb. Steveo had the same problem and when he had his carb rebuilt the problem stopped... have to recheck....

M

 back to W--K work!