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You are correct. I run one ounce per gallon of 2SO. Depending on how much you use/hard it is to get, you can use less. Some is better than none.

There are some rumors floating around the interwebs that 2SO will clogs tiny orifices in time. Or that it will cause excessive wear in the CP3/injectors because it does not have the correct chemistry. Same goes for ATF.

Being that tcw3 is ashless, and dexron 3 has a low burn temperature, both will leave nothing behind at the very tip of the injector.

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Discussion Starter #142
smelonas - Got it?

I think so ... so ..... pretending I have a 36gall tank, which is roughly what I usually put in but will adjust from there:

- First three or four fills only. Use 8oz ATF + 20oz 2SO
- After that use 20oz 2SO every time (plus 1 quart of ATV to clean every 2 to 4 fills)

And I just stuff that stuff in the tank prior to filling with diesel? Or best done after filling? I imagine the oil might sit if it is denser than the diesel?

Also, will the heavier use of fuel cleaner at the start screw up my FASS filters? The intial post mentions changing filters after a fuel clean.

The use of ATF and 2SO is easier for me as I should be able to get it most of the time. Why do some people not like the idea? The post mentions not all will recommend.
Huh??? no, the right amount of ATF for the amount of fuel adding to the tank... 8oz... I think if your filling up more than 37 gal every time, just do 12oz per tank and you'll be fine.
 

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smelonas stated ".. When I ATF treat, I use a whole quart. But I only treat every 3-4 tanks .."
smelonas also just said ".. I run one ounce per gallon of 2SO .."


What do I put in the first 3 or 4 times?
What do I put in each time after?
 

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Discussion Starter #144
Ah... Thats what he does... I've never gone past the 16oz to 1/4 tank which was pretty high, and even then I thought I was swapping injectors.


Just do this... 8oz of ATF, 24 oz of 2 stroke oil for every 35 gal.
 

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It's all in preference. Steve's advice is very sound in that your additive products will go further because he uses less.

He has used his mix with great success, so there would be no reason to not use it in the same proportion(your tank is bigger).

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Discussion Starter #148
Valve Lash Adjustment

From the II website

ALVE LASH ADJUSTMENT 2003-2007 CUMMINS 5.9L Note: To obtain accurate readings, valve lash measurement and adjustments should only be performed when the engine coolant temperature is less than 60 degrees C (140 degrees F).
(1)Disconnect negative battery cables

(2)Remove cylinder head cover.

(3)Using the crank shaft bearing tool #7471-B (recommended by Cummins), rotate crankshaft to align damper TDC mark to 12:00 o’clock position. a.If both number 1 cylinder rocker levers are loose, continue to next step. b.If both number one rocker levers are not loose, rotate crankshaft 360 degrees. (Note: If #1 cylinder rockers are not loose, you can always adjust the valves in step #7 first, then come back to these on the next 360* rotation.

(4) With the engine in this position, valve lash can be measured at the following rocker arms: Intake 1-2-4 / Exhaust 1-3-5. Measure the valve lash by inserting a feeler gauge between the rocker arm socket and crosshead.


VALVE LASH LIMIT CHART

INTAKE
0.152 mm (0.006 in.) MIN
0.381 mm (0.015 in.) MAX

EXHAUST
0.381 mm (0.015 in.) MIN
0.762 mm (0.030 in.) MAX

Note: If measured valve lash falls within these specifications, no adjustment is necessary. Engine operation within these ranges has no adverse affect on performance, emissions, fuel economy or level of engine noise.

(5) If adjustment is required, loosen the lock nut on the rocker arms and turn the adjusting screw until the desired lash is obtained: -Intake 0.254 mm (0.010 in.) -Exhaust 0.508 mm (0.020 in.) Tighten the lock nut to 24 N.m (18 ft. lbs) and recheck the valve lash.

(6)Using the crankshaft bearing tool, rotate the crankshaft one revolution to align the damper TDC mark to the 12:00 o’clock position.

(7)With the engine in this position, valve lash can be measured at the remaining rocker arms: Intake 3-5-6 / Exhaust 2-4-6. Use the same method as above for determining whether adjustment is necessary, and adjust those that are found to be outside of the limits.

(8)Install the cylinder head cover.

(9)Connect the negative battery cables
 

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ATF and 2 stroke oil

Sorry to be dense but do you recommend adding ATF and 2 stroke oil to every tank of gas? I have a 55 gallon aftermarket tank and am rolling through South America where the diesel is not good. Just had to get my fuel injectors rebuilt in Bogota to get running again. Unfortunately, I don't think I'm going to be able to install a fuel filtration system like the Vulcan down here. Thanks.
 

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Discussion Starter #150
Sorry to be dense but do you recommend adding ATF and 2 stroke oil to every tank of gas? I have a 55 gallon aftermarket tank and am rolling through South America where the diesel is not good. Just had to get my fuel injectors rebuilt in Bogota to get running again. Unfortunately, I don't think I'm going to be able to install a fuel filtration system like the Vulcan down here. Thanks.
I would... however you need to make sure the ATF is non-synthetic & the 2SO is the TC-W3 version.

if you can get your hands on the Baldwin PF7977 fuel filter, I would run that. 5 micron filter.
 

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Thanks. How much ATF and 2 stroke oil would you add to every tank of gas? I think I read 8oz of 2SO but not sure about ATF. Unfortunately, I'm rolling through South America right now and just had to have my injectors rebuilt after only 90K miles on the truck. Bought it used at 65K miles in the US and drove it through Mexico and Central America and my theory is I got some bad diesel in Mexico or Central America. Unfortunately, I can't get my hands on a good fuel filtration system until I get back. Thanks!
 

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How has this not been stickied yet??
 

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Because the admins around this particular forum section refuse to sticky anything worth a hoot. But go look at the second gen stickies... many many many of those.

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Yeah...was surprised to see this wasn't stuck. Oh well...now I can follow it. Thanks for putting in the work with all this info.
 
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