Oil change intervals
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My first oil change was at 2400 miles because I was getting ready for an 1800 mile trip. Now I have 4700 miles and plan on changing oil at 6000. Then 10,000.
I haven't decided from there, but wiil probably go every 5000 miles. It will also depend on how dirty the oil seems to get by visual inspection. I used to change oil every 3000 miles on my other vehicles.
I haven't decided from there, but wiil probably go every 5000 miles. It will also depend on how dirty the oil seems to get by visual inspection. I used to change oil every 3000 miles on my other vehicles.
#5
CD2 did a study a few years ago and found that the additives in the syn oils begin to break down after 1500 miles, combine this with the fact the the timing chain tensioners are hydraulically actuated and are "sensitive" to dirt (leading to failure), I change the filter at 3K miles even if the oil looks good and change it if the oil is starting to look/feel tired...no longer than 5K miles ever.
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The first change probably should be changed earlier, like 5000 mi, but 10,000 mi is for normal use. It's shorter intervals for severe use like dusty conditions, long idling, towing and hauling a lot, etc. If concerned about changing oil sooner, use the severe use oil change schedule listed in the maintenance manual.
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CD2 did a study a few years ago and found that the additives in the syn oils begin to break down after 1500 miles, combine this with the fact the the timing chain tensioners are hydraulically actuated and are "sensitive" to dirt (leading to failure), I change the filter at 3K miles even if the oil looks good and change it if the oil is starting to look/feel tired...no longer than 5K miles ever.
How do you determine how used your oil looks/feels?
Plenty of UOAs have shown MC syn blend is good for 7500+ miles (on the 5.4L).
Before you guys decide to cut the recommended change interval by 2/3 (and thus **** away your money), why not at least get a UAO done?
Do you really think Ford is going to recommend an OCI that will destroy engines?
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I would like to post a copy of my UOA. but cant figure it out. I run Schaeffer 7000 5w20. 10,000 miles interval. All wear metals are in the sinlge digits execpt the iron are 21ppm. The base oil viscosity has not even began to break down. There is only one way to predict the life of oil and that is with uoa's. You can't go by feel, smell, or looks.
#14
I had a Dodge Dakota (Never again Dodge) which I had for 10 years and one hundred thousand mile on it, I used Syn Oil from the first oil change and it never used any oil bewteen changes except for one time when I went almost 8000 miles before I changed it.
The only good thing about that dodge was the engine.
The only good thing about that dodge was the engine.
#15
I would like to post a copy of my UOA. but cant figure it out. I run Schaeffer 7000 5w20. 10,000 miles interval. All wear metals are in the sinlge digits execpt the iron are 21ppm. The base oil viscosity has not even began to break down. There is only one way to predict the life of oil and that is with uoa's. You can't go by feel, smell, or looks.
On one of the GT500 forums a member had extremely high aluminum content in the UOA. Took it into Ford and they ended up putting on a new head. Rare occurrence but he caught it way early.
I will be switching to a full synth oil for the EB. Probably Royal Purple as I can get it readily.