[Formulajones]

Originally Posted by Jay S

The other day I went to Napa to get a filter. They asked which one I wanted, the Silver or the Gold. I asked what the difference was and they said the Silver was rated for 5000 miles max, the Gold was rated for 10,000. Both made by Wix. Things that make you go hmmmmm.

Btw, the Chrysler engine with the crazy filter design on top of the engine that has no drain back feature is a 3.6, not a 3.8.

When I was doing oil analysis to figure out my oil change intervals I kept stretching it to see how far I could go. I was using, and still use the Wix/Napa Gold filters.

I had found through OA's that I had stretched to 6000 miles and things were still looking good, the filter was still doing a good job. I didn't stretch it further though and just kind of picked 6000 miles as a good spot to change oil in the cars. Could probably go further but I was happy with that, basically saving me double the cost I was spending changing oil in the cars at 3000 miles. I found out that was completely premature.

I need to revisit that again at some point, not just to see if I can go further, but also to just get an update on filter quality and oil quality to make sure nothing has changed.