Fe wear rate is very good. All other wear metals are very low. No Si or coolant contamination to speak of. Fuel is tracking a bit higher, but at this point, there's no correlation of fuel to wear; it's having no effect.
15k miles is worth trying for sure. Run one or two at that distance; see how the wear rates are. Then consider extending out based on the wear data.
Fuel contamination is nothing to ignore; it's important to track. But it's ONLY important if it shows a propensity to affect wear rates. As long as that's not happening, the fuel level is OK. It may not be desirable, but it's tolerable.
Last edited by dnewton3; 11/20/19 05:05 AM.