Does this make sense to anyone?
07-19-2016, 07:37 AM
#32
Senior Member
I change my oil about twice a year. I don't drive my truck every day, so my yearly mileage is give or take 10k mikes a year. I run a quality blend (either motor craft or Mobil one)), and have never had an issue. Followed the same pattern on two previous vehicles, other than running royal purple full synthetic in my cobra. Synthetic or synthetic blend oil doesn't break down isn't caused by time. It's caused by heat, which is caused by mileage. So I would pay more attention to mileage than ago, tho I wouldn't go much over 6mos regardless of miles. On a diff note, my two work vehicles have had their oil changed every 7-10k miles, NEVER had the tranny serviced snd both have lasted to nearly 200k miles before the company replaced them, so who know...
07-19-2016, 10:57 AM
#33
This is what the engineers tell the dealer tech's.
The only thing that could be subjective is the definition of "Severe duty"
On a side note, we have trucks in our fleet pushing 350,000 miles on the original differential oil with no issues.
.
The only thing that could be subjective is the definition of "Severe duty"
On a side note, we have trucks in our fleet pushing 350,000 miles on the original differential oil with no issues.
.
Last edited by RLXXI; 07-19-2016 at 10:59 AM.
07-20-2016, 07:56 AM
#35
Senior Member
....Dealership gave me the line (which may be true) we use detergents that completely clean it.
The use of cleaning agents will cause internal transmission damage.
07-20-2016, 01:59 PM
#36
Senior Member
Keep in mind that using fluid change intervals that appear to indicate low maintenance can also be a sales tactic.
Like someone said, once you purchase the truck, it's yours. The only thing Ford cares about is getting through the warranty period.
Like someone said, once you purchase the truck, it's yours. The only thing Ford cares about is getting through the warranty period.
07-20-2016, 04:30 PM
#37
I guess I have a decent dealer. When I get transmission service I tell them I don't want the flush, I want the filter replaced. They just say OK and do it, I go about every 50k but I tow a lot, I would probably go more if it was a grocery getter.
07-23-2016, 01:12 AM
#38
Member
Thread Starter
I really don't know. Maybe he was just talking out his rear. I could tell he was just saying anything to convince me that what they were going to do was great for the truck. It's been a couple weeks and no problems, it runs & shifts great. Hope it holds up.