We've seen our fair share of "what oils to use" & "oil change interval" threads, but something incredible's been happening all summer with my rig & I've come to a conclusion: I think I'm going to change my oil every 7000-9000mi.
@ just the very end of winter, somewhere around Feb., I had been so busy with work that I didn't have too much time to keep up on regular maint. The 2 things I absolutely worried about the most were of course, the fuel filter & the oil. We all know the fuel filter's the cheapest & quickest item for routine maint. I had run down to NAPA, paid the $12, drained the fuel bowl, & dropped in the new filter. No problems. As for the oil though, I didn't have a choice. I had to push it as far as it would go.
Keep in mind; I don't have any fancy remote oil filters like the FS2500 or whatever else there is on the market. All I use is a NAPA or Motorcraft oil filter & some good ol' Rotella.
So from the end of Feb to about a few weeks ago, I had been driving back & forth to work, picking my son up from CT(75mi 1-way, 150mi round trip, 300mi pick up & drop off), & driving up to NH(trips range from 100 to 410mi.). Within this entire period, I didn't have one single problem with performance, I only had to top the oil off once(about 3 1/2qts.), & I was consistently getting 18-19mpg on the longer trips. I've monitored Heavy's performance, maint. costs, etc. & this year has been THE best in cost efficiency, MPG, & overall performance when I needed it!
I use a Motorcraft box top from the 1st filter I bought from Heavy as kind of a log for oil & fuel filter changes. All I write down is the date & mileage to keep track of the next oil change which used to be 5k mi. I finally got some time to get the oil & filter for what I thought was a long over due oil change a little over a month ago. I looked @ the box top & the last time Heavy had an oil change was 115,877 on 11/2/09. The mileage @ the oil change was 124,999. For all of us that aren't math whizzes, that's 9122mi!!!
So now I've decided, since I can push my Rotella(one of the best brands IMO), this far, I've got faith in my 7.3 & Rotella so much that I'm going to extend the oil changes between 7k to 9k, depending on when I pay attention to the odometer.
Who else has "the faith"?
"HEAVY" 2001 F-250 XLT 4x4 EC SB
TW 6pos chip, S&B CAI, Monster 4" exhaust w/ Power Elbow, Big Head WGA, Technicooler, ITP boost fooler, Gen 1 Wicked Wheel, Six-Gun Tuner, Optima Yellow Tops, AutoMeter(Boost, Trans, EGT), CCV mod, MTS TC, MTS valve body, Trans Tech performance rebuild kit, TransGo shift kit, Hornblasters 242 Shocker Train Horns.
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