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Old 06-14-2010, 05:46 PM
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Oil changing time

Well, I just went over 55k miles on my truck and it's time for another oil change. I've always been told to wait until around 50-60k miles before I go to any type of synthetic on these motors, don't know why.

Anyways, I'm wondering which oil is the best to go with. I know this could open a can of worms, asking which oil is the best and that's not my intentions. I've always just used the ford motorcraft stuff. Should I stick with this since it's a partial synthetic and add some RevX? It seems that the RevX works regardless of which oil you use. Or should I go with a synthetic and not use the RevX? I've read a lot of really good threads about the RevX so I'm really considering going with it.

My truck runs great and I've never had any troubles with it. Certainly don't want to cause any problems. Any suggestions would be greatly appreciated.
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Old 06-14-2010, 06:01 PM
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Amsoil 15w-40 would work great in your application, extended drain intervals, truck will run smoother, slight mpg improvement, their oil filters are gurranteed to 25k when you use Amsoil synthetics. check out the the vendor section, i just did a post on 15w-40 and all the benifits, if i can be of assistance, let me know, chad
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Old 06-14-2010, 08:33 PM
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I have a 2006 6.0 with 26,000 miles on it. Last week I installed an oil filter by pass system and switched to Schaeffer's fully synthetic 5W-40 CJ-4 motor oil at the same time. When I started it up I could not believe how much smoother the engine ran. I don't have any MPG data yet as I only have about 35 miles on it since the switch to Schaeffer's.

I installed a DieselSite coolant filter at the same time. If I had a digital camera I would post up some pics.
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Old 06-14-2010, 08:49 PM
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I always run the Valvoline Premium Blue Extreme 5w-40 with a motorcraft filter. Costs more than regular oil, but you can spend a lot more. I did quite a bit of research before I decided on it and it really looked like the best bang for the buck, plus I can get it at any NAPA. Of course I have a 7.3, but it sounds like 5w40 works in the 6.0 too.

I also agree, it made my truck a lot quieter, it warms up a bit quicker, and it may just be me, but it seems to have helped a bit in the low end speed.

Good luck.
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Old 06-15-2010, 03:45 AM
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Quote:
Originally Posted by MountainMan View Post
I have a 2006 6.0 with 26,000 miles on it. Last week I installed an oil filter by pass system and switched to Schaeffer's fully synthetic 5W-40 CJ-4 motor oil at the same time. When I started it up I could not believe how much smoother the engine ran. I don't have any MPG data yet as I only have about 35 miles on it since the switch to Schaeffer's.

I installed a DieselSite coolant filter at the same time. If I had a digital camera I would post up some pics.
schaeffers is a great oil too, i run the 5w- 40 as well
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Old 06-15-2010, 04:23 AM
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any oil is a good oil as long as you keep up with the changes.
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Old 06-15-2010, 05:36 PM
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Thanks to all of you that provided info. Right now it seems that the Amsoil has taken the lead. What about the RevX? I've read nothing but positive reviews about it. I looked on their web site and they don't mention the application of it. Do I need to drain a little oil or put a little less in it or do I just dump 8oz in once I change the oil?
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Old 06-15-2010, 06:21 PM
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Quote:
Originally Posted by nightstalker View Post
Amsoil 15w-40 would work great in your application, extended drain intervals, truck will run smoother, slight mpg improvement, their oil filters are gurranteed to 25k when you use Amsoil synthetics. check out the the vendor section, i just did a post on 15w-40 and all the benifits, if i can be of assistance, let me know, chad
I disagree. I switch my Nissan Titan and wifeys Nissan Versa to Signature Series 0W-30 ($10.50/qt) and AMSOIL Ea Oil Filters. I've been running that for almost 20k miles in each. I have seen no improvement in MPG and they no longer support running my Ea filters for 25k miles. This does not affect the F250s but it left a sore taste in my mouth.

AMSOIL Policy and Procedures Updates

I've done a ton of reading out on the internet and there are more opinions that one could read in a life time. Oil is good for a long long time but filters need to be changed. I don't know about you but if you are laying under the truck to change out the filter are you really going to leave old oil in there?

From what I have gathered unless you are going to run your oil for more than 5000-7500 miles change interval synthetic is not worth the extra money. IMHO spend that extra money on something else.

I switched both cars to the Amsoil oil at about 6k miles on each.

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Old 06-15-2010, 06:57 PM
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I used syn on my prior 6.0 (and 7.3)......ended up with many oil leaks, switched back to dino, no leaks since.
I have stuck with dino oil only on my 07.....Shell Rotella 15w-40, and change it every 3K, towing or not.
Have been comptemplating trying Rev-X with all the good reviews.
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Old 06-15-2010, 07:08 PM
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ive been runnin Amsoil 5w-40 on my 6.0L since about 35,000 miles...no leaks no probs...run the oil for 10,000 miles and change my oil filters every 5,000 miles...!!!
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