You are quite mistaken. It is about trusting people who have credentials vs. those that do not. If you do not know the difference you are always going to have problems. When ASE certified mechanics, oil tribologists, AND repair shops recommend something, it carries more weight than someone that just started posting in July 08 CLAIMING that they have a 6.0L truck with 180k and want advice because they have no knowledge of the 6.0L ...... and then by December they have 7 6.0L's and know more about basic maintenance than even ASE mechanics. There are TROLLS that like to strir things up. This is why MANY ASE certified mechanics do not post here. That is a BIG shame.

It is about being conservative because so many people have vehicle problems. Offering sound advice instead of taking risks - this is helping folks. The value of this forum is help - Hopefully folks will never quite disagreeing with something unwise that is posted just because they are afraid someone else will rattle on about opinions ..... blah, blah, blah.


It also comes from much time spent reading the service manuals and talking to dealerships.

ALL of the below is from the SERVICE MANUAL (PC/ED):

Hard Start/No Start Diagnostic Procedures
Purpose:
The purpose of this test is to verify the oil quality and determine if there is sufficient oil to operate the injectors.
Check Engine Oil Level
Check for contaminants (fuel, coolant).
Correct grade/viscosity.
Miles/hours on oil, correct level.

Oil Aeration Test
Purpose:
The purpose of this test is to determine if the engine lube oil is aerated and causing poor idle quality.
Oil Aeration Test

• Run engine at 3,000 RPM for 1 minute.
• Take an oil sample from the engine oil temperature (EOT) sensor port at idle.
• Inspect the sample for presence of air bubbles.

Excessive oil aeration can be caused by depleted oil additives, pick-up tube leak, front cover seal leak, or upper pan seal leak.

 

My point being ..... some are VERY quick to point out how mistaken somebody is for their opinion, because it does not align with their opinion (if the shoe fits). Exactly who appointed them as the opinion master? Why is my opinion of what I got, NOT what they think I should have gotten, from reading these threads wrong? It's my opinion and if I choose not to agree when someone who insinuates they are all knowledgable hasn't proven it to me..... So be it. I don't disagree with some of the material and facts presented here just how some choose to write it up. I guess that'll be me rattling about someone who boasts ALOT!

 

Bismic,yes, we have 6.0's, 7.3's, N-14's, Cats, dozers, excavators.......we have a concrete company, and I didn't all of a sudden get (7) 6.0's from July to December. I asked in July about my 6.0 w/ 180,000 miles because I thought you guys would know some good performance mods since we have a 2006, 6.0, that one of our salesman wants to learn about but doesn't have time. So, I am not making any of this stuff up. So before you assume that I all of a sudden come up with all this equipment and that I am lying, ask first instead of making yourself look like you have a crystal ball.

mcallister

 

Mark, I hope that things like this don't keep you from continuing to share your knowledge on here. Sometimes people can just agree to disagree. Their trucks, their money, ultimately their decisions. Keep up your good work here as like I said I for one do value what you bring to this site. In the 2+ years I've been on here I have learned a bunch and have even sometimes been able to pass along what I have learned here by first reading and then putting that knowledge to use working on my own truck. I knew very little about my truck when I started, in spite of having 15 years of operating heavy equiptment. But I have learned, thanks to all those who contribute. I have also, sadly, seen some very knowledgeable guys here, go. Where they went, I don't know,( I'm sure you can name several without thinking) but we need guys like yourself to pick up the torch and forge on. Thanks and please continue what you do for this site.

 

Ditto!!!!!

 

Sorry for causing such a fuss, I too hope Mark continues to post his very valuable experiences……. I have learned ALOT from the forum and in particular a few of his posts. I apologize for getting fired up about this.

 

Happens to the best of us ( not that I consider myself one of the best, just an expression...)

 

well said... and even everyone who might have got fired up its always good to have a discussion even when heated that jus makes you passionate which is always a good wuality i also second the post about bismic he's very knowledgable and has definitely helped me out a few times... sometimes even indirectly
so in closing thanks to EVERYONE on this site whether you've been her two seconds or two years

 

also; don't sell yerself short D8

 

I feel like we need a group hug! ( sorry its the smarta$$ coming out in me)

 

to keep things in perspective we need to realize that mileage alone is only a guideline. we need to take into account type of service(stop and go v.s. highway, v.s. towing, v.s. ambient temps v.s. amount of dust etc) for example the fleet i worked for until recently changed oil on their c-15 cats at 250 hrs,these units probably idle 70% of the time after fleet uoa they upped the interval to 400hrs. now on my 6.0 when i run it total idle time is under 5%, crank it up and idle down the street, 3 blocks then 60 miles highway and shut it off. at 5000 miles i would only be at 100 hrs tops. so in MY application , no towing yet, 5-6 trips per year with truck camper and mostly pavement can i use the light service intervals. in my yes light duty intervals are ok. i do use petro canada 5w30 syn year round the only issues i have had with the 05 unit is constant fouling of the egr valve, don't personally see a connection to oil change intervals. anyways point is maybe for mccalister this works, idn if he is checking for oil shear or not but if he and oil lab are happy with the oil vis results and soot levels maybe we should give him a tiny bit of space before we hang him too high

 

Nitrogen - I pointed that out in post 26 (before things went from merely contradicting, but passionate, opinions to a "more personalized nature"). I agree that to each his own and I do offer my apolopgies for jumping into the responses with "personalized" posts of my own.

To be responsibile in posting, if driving conditions are so far out of the norm, it really should be explained with the post (ie 200-300 miles per day is VERY different than 95%+ of the people that will read these posts and apply them to the wrong driving habits). Even so, this is why I went so far as to say 10k miles between changes.

McAllister has clearly had success so it is worth posting (again my apologies for the personal implications that you were not truthful), but to be totally thorough about it, details (as I requested in post 26) would more than likely put it into the proper context. You did encourage folks to "try it" - and that is what brought on my strong feelings. Regardless - you remained calm and professional in your responses - that speaks well for you.

EOD guy - I appreciate your words in your last post.

OK - I'm done .......... D8 - count me in on the group hug.

 

Myself I used 15W40 Rotella syn change every 10.000 miles (our six months which comes first) an filter to had no problem stay clean for long time f250 08 6.4l like the engine lots power 13.5 city 19.2 hwy

 

JGoebel-2 quick questions, well 1 5-40 is syn, unless I'm mistaken I haven't seen 15-40 syn but I guess it is possible. 2, when you say "stay clean for a long time" this is visually, I'd imagine? I don't claim to know much about 6.0's and less about 6.4 but have you done a UOA on that 10k oil change? I personally have changed oil in lots of vehicles where the oil didn't look too dirty on the dipstick, but the drainpan tells a different story. Never did a UOA until I bought my current truck. What is the recommended OCI for a 6.4? I can't imagine it would be more than 5k'ish, can it? And the 6.4 is probably equally as hard on oil as the 6.0 if not harder (with 2 turbos) ? Somebody help me out here- am I on the right track? Isn't the 6.4 based on the 6.0 somehow? Don't flame me, just trying to learn a little here.

 

From what I have read the 6.4 is more tolerant of the oil since it has gone to a diff. type of injector/fuel system and that is why Ford upped the OCI's to 10,000 miles normal duty.