[IowaFarmer338]

I was wondering how often I need to chamge my oil? I am new to diesel engines in trucks....we change our tractors once or twice per season, but as you know, they are measured in hours, not miles....thanks /ubbthreads/images/graemlins/confused.gif

 

[TheHammer69]

[ QUOTE ]
I was wondering how often I need to chamge my oil? I am new to diesel engines in trucks....we change our tractors once or twice per season, but as you know, they are measured in hours, not miles....thanks /ubbthreads/images/graemlins/confused.gif

[/ QUOTE ]

By the book, every 5000 miles. If you practice Oil analysis, you may be able to extend it.

Hammer

 

[tazmo]

I change my oil every 5000 miles. rotella 15w40 and motorcraft filter lube every other oil change

 

[Larry M]

[ QUOTE ]
I was wondering how often I need to chamge my oil? I am new to diesel engines in trucks....we change our tractors once or twice per season, but as you know, they are measured in hours, not miles....thanks /ubbthreads/images/graemlins/confused.gif

[/ QUOTE ]

IMO it sort of depends on how you use your truck and what filtering other than the normal FF you use. For me I should be changing every 3K miles because I work the snot out of my HP challenged Van towing usually between 60 and 80% of the miles I often put on it, but have extended that to the 4K to 5K mile interval (my target is 4.5K) using an Amsoil bypass system and based on the one "ferrographic" or particle analysis I have had done that combo seems to be doing the job for me. I only use the normal OA to do trend analysis and to identify potential problems in fuel/coolant/insoluble issues and impending mechanical problems not for oil change intervals since I don't feel they are very useful for that especially if you're using some sort of quality bypass system.

If all you're doing is using the truck as a "grocery getter or commuter" or towing a rowboat /ubbthreads/images/graemlins/wink.gif like 10 to 20% of your miles then 5K is probably fine. However, if 50% of these miles are on really short trips or a lot of stop and go then you might consider a more frequent oil change interval.


Larry, keeper of the <font color="red"> New revised </font><font color="blue">"little secrets" </font> CLICK HEREhttp://forums.thedieselstop.com/ubb...73329&page=0&view=collapsed&sb=5&o=31&fpart=1 /ubbthreads/images/graemlins/smile.gif

 

[AllStarPSD]

250 hrs. (if your truck idles alot)


thomas

 

[RenoF250]

I used to change mine every 3k but I have extended to 5k with my Oilguard filter. I probably could go longer but I like clean oil.

 

[NCHornet]

I change between 3-5K and my oil report says to try 7K but I still do the 3-5K because I feel better. Oil is not that much!!! Get yourself a Fumoto valve to make oil changes a snap!! I love mine.

 

[XPSD]

I do mine every 4k, But I'm anal about this truck.

 

[cphilip]

I do it ever 5K. I had an oil report at 34K and again at 65K or so if I recall right.... (both at 5K change intervals) and they both said could go another 1000 if I liked. Thats one analysis with Fords oil and the last one with just plain old Rottella T. Am at 72K now on the truck.

I think its a carefull balance between what is right for the truck and whats right for the environment. If its clean enough to run more at 5K then I should think its time... and not too soon. I don't like to waste good oil nor go to long. So I pretty much keep it close to those reports and stay around 5K. There is indeed a lot of oil in these things.

 

[lhansford]

I run full synthetic with a by-pass filter, and I change the oil only when the oil analysis indicates it needs to be changed. So far, it hasn't indicated a need for changing the oil. I change the full flow filter every 7,500 miles and the by-pass filter every 35,000 miles or one year, whichever comes first, and then add oil to bring the level back up.

 

[Ggg6]

I have a little different outlook on this. I do respect those who differ in opinion, so this is no criticism of them. I change my oil between 8000-10,000 miles. I drive at least 25k miles per year. I know Ford says 5000, I do not care what Ford says because they do not even make the darn engine. IMO Ford has done nothing to better any of the diesels they buy from IH, from the 6.9 to the 6.0. IH says this engine is designed as a medium duty diesel. IH recommends oil change intervals of 10,000 miles in severe duty applications as defined by medium duty standards. Our light duty chassis can't perform severe duty service for very long as it is defined by medium duty stds. So I feel just fine changing my oil at the intervals stated above.

 

[mobeydick]

[ QUOTE ]
250 hrs. (if your truck idles alot)


thomas

[/ QUOTE ]

That would be every 13,875 miles for me. I change iy every 10,000 now weather it needs it or not!! About every other month.

 

[POS]

8000 miles with Delo/Wix - 90% highway.

 

[Larry M]

[ QUOTE ]
I have a little different outlook on this. I do respect those who differ in opinion, so this is no criticism of them. I change my oil between 8000-10,000 miles. I drive at least 25k miles per year. I know Ford says 5000, I do not care what Ford says because they do not even make the darn engine. IMO Ford has done nothing to better any of the diesels they buy from IH, from the 6.9 to the 6.0. IH says this engine is designed as a medium duty diesel. IH recommends oil change intervals of 10,000 miles in severe duty applications as defined by medium duty standards. Our light duty chassis can't perform severe duty service for very long as it is defined by medium duty stds. So I feel just fine changing my oil at the intervals stated above.

[/ QUOTE ]

While at a gross level that might be true you have to remember that there is a trememdous difference in how that same basic engine is actually implemented in the PSD vs. the IH trucks. The IH version IIRC is set up to run a lower HP relying on the torque and gearing to put the power to the ground at a much lower RPM than the PSD implementation. Over let's say that 10,000 mile interval for an engine in an IH truck our engine has turned revolution wise ... read that as "wear" on the oil ... a BUNCH more RPMs and thus has produced more wear and more strain for lack of a better word on the oil in the engine. Does this equate into a halving of the oil change interval ... probably not, but I also don't think you can compare the two directly /ubbthreads/images/graemlins/shrug.gif

Finally, not many IH trucks have things like "flip chips" aftermarket programmers where us PSD owners are continuing to try and suck that last HP out of an engine that was designed for a much lower HP output.

Just another take on this PSD vs. IH comparison that you might want to consider.


Larry, keeper of the <font color="red"> New revised </font><font color="blue">"little secrets" </font> CLICK HEREhttp://forums.thedieselstop.com/ubb...73329&page=0&view=collapsed&sb=5&o=31&fpart=1 /ubbthreads/images/graemlins/smile.gif

 

[Dozer Don]

I tow a 32ft. fifth wheel all over California and change oil every 2500 miles.
I get Shell Rotella and a filter at Wal-Mart and do it myself.
I'm retired and have plenty of time (and oil) on my hands.
124,000 miles on it and no complaints.

 

[lhansford]

[ QUOTE ]
I tow a 32ft. fifth wheel all over California

[/ QUOTE ]

I towed my 32' fifth wheeler through both SF and LA a few months ago, and that was a once in a lifetime experience. I knew I wasn't in Kansas anymore! /ubbthreads/images/graemlins/laugh.gif

 

[iwejun]

I just got my first Blackstone report and I have 33k on my truck, drove it 5040 mi. on Rotella 15/40 with about 10k worth of towing overall so far. Report said I could easily wait until 5500 to change next time, and all my wear numbers were below their averages. So I'm going to go up to 5500 and check it then. Before I was an advocate of changing at 3500.

 

[LagerHead]

I change mine at about 5000 miles but the truck tells me when it wants an oil change there is change in the way it sounds after the oil change the sound returns to normal

 

[historic]

I have over 15,000 miles on my oil (delo 400 15-40) but I change the Gulf Coast by pass filter around every 5,000 and add about 6 quarts of makeup oil.

Last analysis with 15,000 on the oil said it was good to go but I changed the oil and all filters anyway. This time I'm going to extend and see what the analysis indicates. Gulf Coast recommends never changing the entire crankcase, just change the full flow and bypass filters every 10,000 and add make up oil.

 

[GrampyJim]

What are the $ savings with this method?