I have been using dino oil in my ctd. I have tried most all the dinos out there but mainly rotella. I change my oil and filter on 5k mile changes and that is with mobil 1 filters. I am thinking of changing to rotella synthetic but to offset the cost I would like to go to 7500 mile oil changes. I drive 15k to 20k a year with maybe 20% of that being with 5000 to 10000 lbs. behind the truck. What do yall think? Is this safe with the rotella synthetic and using mobil 1 filters?

 

I'm going 7500 miles on Delo 400 and Fleetguard filters. Either way you're safe.

MikeyB

 

That is safe and Rotella is good but if you want to offset the cost just get a fleetgaurd or Baldwin filter >> they are just as good for filting and they are more than 1/2 the cost! M1 filters are good but they are overkill on the case and the filter media is about the same as Baldwin and FG's.
Oilguy

 

The mobil 1 filters are only 10 bucks at auto zone by me. Napa wants 12 bucks for a filter. I can buy fleetguard at the cummins shop for 9 bucks but they are 15 miles away. I cannot justify going that far for a filter to save a dollar when I drive by an autozone on the way home from work. Some of the people on here have reported better analysis using mobil 1 over fleetguard too. So for me, they work quite well. I haven't seen any baldwin's around here. They must be good though. A bunch of people swear by them.

 

I run 7500 mile OCI's w/ Chevron Delo 400 & a WIX filter... You'll be fine!


Tony

 

On the 2003 HO severe service schedule B you can go 7500 miles on regular dino oil.

 

I run Rotella T, and use FLeetguard filters, costs about $30 at the most for me to change it filter is $9~, oil is $38 for 6 gallons, enough for two changes...

I change mine every 3k-3500, cheaper than changing it in any of my cars, and cheap assurance...

 

I kinda fell like I am in between severe service and regular going by the manual. Here in North Texas it gets pretty hot in the summer and I do have some, not alot, short trips. I split the difference and that is how I started doing 5k change. Sounds like I can rest at night going longer on the rotella syn. Thanks guys....