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My wife has a 1997 BMW 318i that had a rear main seal leak for about 1 1/2 years. The leak started right after I began using Amsoil XL-7500 10W-40. With the same Amsoil oil in the engine I added a bottle of Auto-Rx and saw no change after about six months. At this time I also realized that I had...

I saw Valvoline SYNPOWER 5W-20 at Checker Auto Parts today for $4.59 per quart. I just thought I would let everyone know that there is something new out there. Here is a PDF file with technical data from Valvoline. web page [ May 26, 2004, 01:23 AM: Message edited by: Sin City ]

Here is an article from Lube Report: May 25, 2004 Castrol, ExMo Set Pace on GF-4 By Tim Sullivan Castrol Consumer North American confirmed last week that it will offer API-licensed GF-4 motor oils beginning Aug. 2, immediately after the American Petroleum Institute begins licensing oils...

This looks like the future for diesel engine oils in Europe and eventually here in North America. At the bottom there is a link to the original artilce. This is from the Daimler-Chrysler European web site. Original Daimler Chrysler web page Here are some Daimler-Chrysler 229.31 oils. MB sheet...

Chrylser will be changing from 5W-30 to 5W-20 motor oil in 2005 for at least some of it's vehicles. How long will it be before nearly all North American built vehicles are leaving the factory filled with 5W-20 motor oil? Also I would imagine that it is just a matter of time before Toyota jumps...

Here is an artilce from Lube Report that I thought was interesting. Article from LUBE REPORT (http://www.LubeReport.com/e_article000231583.cfm?x=a2DjWJL,a1FGfTKL) February 24, 2004 Quick Lubes Decry VW Oil Tie-in By Tim Sullivan The Automotive Oil Change Association has filed a complaint...

I just went to the Castrol USA website and I noticed that Castrol is now producing 5W-20 Syntec. The really interesting part is that Castrol Syntec 5W-20 "exceeds all the requirements of ILSAC GF-4 and GF-3 for API Certified Gasoline Engine Oils." web page You will need to click on the...

Here is an interesting article on GF-4. web page Latest full issue of LUBE REPORT. web page [ November 19, 2003, 04:01 PM: Message edited by: Sin City ]

Here is a LUBE REPORT article about Chrysler's ATF+4 licensing. web page

Here is a VOA of Castrol Syntec 5W-50 from another forum. The date this sample was received by the lab is November 14, 2002.

What are the details of the new sequence IIIG test for the new ILSAC GF-4 specification and how does it compare to the old sequnce IIIF test? The only information I have on the new sequence IIIG engine test is that it is 100 hours long as compared to 80 hour length for the sequence IIIF test for...

I finally received the tech data for Castrol Syntec 5W-40. BMW High Performance Synthetic Oil is really the Castrol TXT Softec Plus 5W-30 with the specs listed below in German. I posted this because in the past there was some confusion about the specs of these two oils. When the two oils are...

GF-4 Showdown Set for July 16, 2003. Click on the link for the article. Lube Report Wednesday, July 2, 2003

What do you think about motor oils with a very high viscosity index like 0W-40, 5W-50 and 10W-60? In Europe there is even one company that makes a 5W-60. I think this is a great idea on paper but how well does it really work? I have seen at least three good UOA's done on Castrol Syntec 5W-50...

I purchased a used 1999 Mitsubishi Mirage in 2000. I liked the car but the automatic transmission always seemed to shift poorly. It just seemed to slip a little each time it shifted. I remembered that when I bought it there was a charge of I believe it was $95.00 for ProLong engine and...