Originally posted by dnewma04:
Originally posted by PoopStainz:
im running mobile 1 (for my 1st time) on a motorcraft oil filter. i ran some cheapo synthetic for lile 1500 miles before i changed to mobile 1. will i be fine going 5000 mikes before a change? (duratec)



Absolutely. 5000k on dino oil would be fine, so synthetics should cause no problems.




Same case for me. Just switched to Mobil1 at 39K miles. Also switched from Fram to Motorcraft filters. Will the filter last 5000 miles? My engine is noticeably smoother at idle.

1999 Contour SVT #1966/2760, Silver Frost/Midnight Blue Koni Kit, Mille Miglia MM-S rims, B&M shifter, Stazi mesh, SFCs, optimized Y-pipe & TB, SS break lines, K&N drop-in, Infinity Kappa speakers, MTX amp/sub