Originally Posted By: BeanCounter
I have cartridge filters on my Solstice that I try to change every 3k or so, but the last (my first) OCI on SSO I ran almost 12k on my d.i. turbo motor. Still had a TBN of almost 7 at the end too.
Suppose it depends how you drive your vehicle and the driving distances, environments it sees, but I think 10k isn't even tapping into the potential of the oil.
Well, that's what it seems Amsoil is promoting the product for. I got this car with 230k miles and have done ALL of the maintenance that it was due for or behind on. Year + later, and after $2,000 invested on top of the 1k purchase price, I have a 50 MPG car for 3 grand. =D
The first thing I did was run 2 or 3 oil changes with Max Life and I started using Amsoil Engine Flush before I dropped the oil each time. Last year I used Mobil 1 Ow-30 AFE 2 times and before I changed to my current interval, I ran another bottle of Amsoil Engine Flush and of course let it keep draining for a while.
I did have a new V.C.G. installed just after switching to Amsoil and replaced the gaskets/seals for the VTEC-e housing and solenoid. This has minimized all of the VX's oil loss to just the typical loss in the little 4 cylinder Honda's from high revving/blow by etc.
The good thing is, since I lost half a quart in the first 3k for not thinking of catching/re-using what the VTEC housing had inside of it, is that by getting to top off continually every 3k miles, I'm always introducing something to beef up the TBN and throw in some more additives. =P