Originally posted by LoveMySVT:
How often do you guys change your filters? It's always been my understanding that pure synthetic oil doesn't break down and should be good for atleast a 12000 miles as long as you make regular filter changes. The filter won't last 12000 miles. I have always changed the filter and added about another quart every 3000. Then made sure that I do a complete oil change about once a year. Although this could also change depending on how hard the motor is run. A couple guys I know change the oil with Royal Purple every weekend, but I guess I would too if I had a stang runnin 8.20s on drag radials
-Chris
Get an analysis. What you're doing isn't at all farfetched, but if it were me, I'd want to be sure.
What kind of oil is it? Some are made (and advertised) as "extended drain interval" and some are not.
Function before fashion.
'96 Contour SE
"Toss the Contour into a corner, and it's as easy to catch as a softball thrown by a preschooler." -Edmunds, 1998
| 
