RevX and rotella Synthetic oil

[demott930]

I just switched to synthetic oil. Never have used it before. Been wanting to so I did. I used rotella 5w40. And also put Rev X in it. What is my oil change intervals going to be. I also heard to change filter at 5k but when do I drain and go fresh? And do I also add Rev X everytime I put fresh oil. I'm on a roll with ordering stuff. Just did gauges this past weekend. Waiting on fuel pressure hose to mount sending unit on fender. Next will be complete solution kit with egr delete. Might do the master solution kit if you guys can help me out in building a BA truck in Indianapolis.

[Idahoser]

RevX is only indicated if you switch oil and still have stiction. I wouldn't add it until you give the new oil a few days first to see how much difference it makes. Since you already added the RevX, then next oil change, hold off on the RevX until you see what it's like after the oil change.

The filter and oil are changed at the same time, opinions vary between 5k and 7500. Seems like a lot of folks are having their oil analyzed but I'll just go with the flow myself, 5k for me. Motorcraft filters only for oil, fuel and air.

There's a significant amount of old oil that remains after a drain, so it takes several oil changes to completely change the oil. You may find you don't need RevX after a time or two.

[Dave]

7500 mi on the oil change unless your truck is severe duty used

[ckyguy68]

Originally Posted by Dave

7500 mi on the oil change unless your truck is severe duty used

Myself and alot of the other guys on here change at 5,000. Clean oil is a key part of a good running 6.0

[skanj0]

Originally Posted by ckyguy68

Myself and alot of the other guys on here change at 5,000. Clean oil is a key part of a good running 6.0

Same here - every 5K the engine oil and filter get changed. Using Mobil 1 5W40 TDT.

Oil is cheap compared to the cost of injectors

[Galaxie]

Per my Blackstone Lab results, Dave is SPOT on. They told me to run past 7,000. I run T6 (yea not the best syn out there) and revX.

I will change around 5,000 when I am tow a TON. Or if there was a lot of short trips.

[HeavyAssault]

Here's my recent "moment of clarity"......

Synthetic oil averages $25+ per gallon and filters are about $20. SO $125 for each oil change is quite a bit to spend. BUT after 186K miles using the 7500 mile oil change interval equals (rounded up) 25 oil changes. $125 x 25 = $3125

Since I still have the original injectors with no issues I have paid for at least one set minus the labor for replacing them (not to mention avoiding the headaches).

[skanj0]

Originally Posted by Galaxie

Per my Blackstone Lab results, Dave is SPOT on. They told me to run past 7,000. I run T6 (yea not the best syn out there) and revX.

I will change around 5,000 when I am tow a TON. Or if there was a lot of short trips.

It's good to know that Blackstone is able to confirm the benefits of today's synthetic oils in these trucks. Also great to hear they a recommended change interval of > 7,000 miles for T6. I ran T6 for one 5K interval and my truck didn't seem to like it. It had a miss that was noticeable at idle at all temps, but at the same time I would swear I saw an additional 1 to 1.5 MPG.

Luckily after switching back to Mobil 1 and adding 2 bottles of Rev-X, the miss is gone - but so is the mileage increase

[neffco]

I am switching to schaeffers 9000 full synth 5 40. 22 a gallon through a rep and they say it's better than amsoil. Uoa's seems to look pretty good

[HeavyAssault]

Originally Posted by neffco

I am switching to schaeffers 9000 full synth 5 40. 22 a gallon through a rep and they say it's better than amsoil. Uoa's seems to look pretty good

I have used it a few times. It was hard to get to the distributor for pick up so I went back to what I could easily find.

All in all there are several brands I will use routinely without question. Valvoline Extreme Blue, Mobil 1, and Rot T6.