<VV> FW: How often do you change your oil?

[mark at noakes.com]

Generally true but not especially relevant to Corvair or to any older 
vehicles.

It's absolutely true that oil companies and maintenance shops would 
prefer that you change more often, but it's equally true that car 
companies and the govt would rather have you buying new vehicles than 
keeping your old vehicles on the road forever. And govt vehicle studies 
that refer to outlier data based on really "old" vehicles are referring 
to anything older than 1995...50s, 60s, 70s, 80s vintage needs aren't 
even on their radar. It's also true that car companies wouldn't be 
telling you to do anything that would cost them warranty dollars, but 
warranties are based on a life of 100Kmiles or less; I'm interested in 
drivetrain life of 300Kmiles despite "spirited" driving...different 
constraints.

For my wife's new Jeep, I try to change it between 4K - 5K miles 
(service interval is 6K). For my 50s thru 80s vintage stuff, I go with 
3K+ but also depending on oil used and how long the vehicle has been 
sitting.

I notice there's no mention in the article about the variability in 
change intervals between dino and synthetics...

Mark N

On 12/17/11 7:30 AM, Harry Yarnell wrote:
>
>
>
>
> Sent: Friday, December 16, 2011 11:11 PM
> Subject: How often do you change your oil?
>
>
>
> It's about time.....well there goes Jiffy Lubes profits down the drain.....
>
>
>
>
> http://www.latimes.com/business/la-fi-autos-oil-change-20111215,0,4554184.st
> ory
>
>
>
>