Re: for the guys that are into recreational oil changing...

so if i owe a few $k, that's insignificant compared to the national budget, and i can "round down", right?

No, but if you owe either $0.24 or $0.48 (100% difference), you can.

No, there are rules for rounding. *Estimates*, however, are a very different matter altogether! :)

FEH! Practically any weather around here is fine if one is dressed for it.

How much clearer can you get than inline response to "with conventional oil"????? Sheesh!!!

That is assuming you actually GET those advantages.

But not all synthetic oils are PAO

Or a 50% reduction, to be accurate.

In fact, 500% difference may be totally inconsequential.

if you're using them, how can you /not/ get them???

right. the majority sold here are in fact group III's. the next biggest seller is group IV, pao's. ester-based motor oils are a tiny minority.

increasing from 2ppm to 4ppm is 100%. to be accurate.

relax. i'm just saying that in the context of the underinformed thinking that "most" [90%???] drivers are operating in "extreme conditions", as quoted above, you should have been specific.

yeah. my civic with 20k mile oil change intervals is 500% broken.