<VV> Synthetic Oil

[Bill Elliott]

Just a note... only the top number is really important... a 0W-50, 
5W-50, 15W-50, and 20W-50 are all the same weight when hot... only the 
cold characteristics are different. Of course, synthetics resist 
viscosity breakdown due to age and/or heat better than dino oils (in 
general), but the real news are the modern viscosity modifiers which 
keep the 20W-50 at 50 instead of degrading to a straight 35 or 40 after 
a while...

Bill

TimogensTurbo at aol.com wrote:

>In a message dated 10/2/2006 11:27:27 AM Pacific Daylight Time, 
>kcvair at netscape.com writes:
>
>  
>
>>After a couple hundred miles I checked the oil level and it was at the add 
>>mark, so I added another quart thinking maybe I hadn't put enough in when I 
>>changed oil.  I had to add a total of 6 quarts before I got home, the last 
>>quart was a regular grade oil because I didn't have anymore Mobil I.  After 
>>going through all this oil I decided to go back to a regular 10-w-30 grade and 
>>have not had add any oftener than every 500 miles.  I have no idea why it used 
>>so much synthetic, but one other person in our club had the same problem with 
>>his Corvair. 
>>    
>>
>=============================================================================
>KC!!!  you're talking about DIFFERENT  viscosities of oil!   What was the 
>Mobil 1  0-50???  They do make several  viscosities!
>
>500 miles......time to change to a 20-40  or 20 -50......how often do you 
>drive the car in SUB-ZERO temps?
>
>Ask Joe Curran...M.I.T.  prof.     15 qts of 10-30 on the way [ 15000 miles] 
>to Daytona 2000......talked him into buying 6 qts of 20-50......only used four 
>to make it home!
>
>
>Matt Nall
>'69 stocker, '66 vert, '65 v8, '66turbo, Vairboat, Sandcar, 64 cp
>ALLVAIR!
>Timogen was a softy!
>  
>


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