Is there a decent 0W-40 oil for a 7.3 diesel primarily for cold temps or is it better to stick with 5W-40? I normally start early in the morning with temps that can range from -20 to 25F. Starting has been poor at best in this range running 15w40.
Thinking about a 0W-40 oil
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JHZR2
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Depends if you see more -20 or +20F conditions. Do you have the ability to use a block heater?
Can you get a diesel rated 0w-40?
Can you get a diesel rated 0w-40?
If you use the truck to tow or do any heavy work you should stick to the 5w40. If not you could go with a diesel rated 0w. I personally feel you would be just fine with 5w40 regardless.
try a 10w30, i have two idi 7.3's that i switched over to in the last year and cold start issues were almost eliminated
Can he not consider Mobil 1 0W40?
Originally Posted By: Oldwolf
Can he not consider Mobil 1 0W40?
The Mobil 1 0W40 only has a CF diesel rating. The 7.3 calls for a CG4 or CH4 diesel rating depending on age.
IMHO the best pre CJ4 diesel 0W40 available in N. America now is Co-Op DMO SL 0W40. Especially since Deere lowered the TBN of 0W40 to ~8 when they went to CJ4 and Delvac 1 ESP 0W50 is about 7.7 - the Co-Op is 11.2. They also have a Co-Op Gold CJ4 at about 8.5.
Despite the 40 rating the pour point is -57 C. (-71F.), and the vis at 100C. is 15.4!
Available at stores in Alberta, Saskatchewan and Manitoba. Might be orderable long distance.
If I lived in Fairbanks and my Unimog wasn't in Australia I'd use it.
Charlie
Can he not consider Mobil 1 0W40?
The Mobil 1 0W40 only has a CF diesel rating. The 7.3 calls for a CG4 or CH4 diesel rating depending on age.
IMHO the best pre CJ4 diesel 0W40 available in N. America now is Co-Op DMO SL 0W40. Especially since Deere lowered the TBN of 0W40 to ~8 when they went to CJ4 and Delvac 1 ESP 0W50 is about 7.7 - the Co-Op is 11.2. They also have a Co-Op Gold CJ4 at about 8.5.
Despite the 40 rating the pour point is -57 C. (-71F.), and the vis at 100C. is 15.4!
Available at stores in Alberta, Saskatchewan and Manitoba. Might be orderable long distance.
If I lived in Fairbanks and my Unimog wasn't in Australia I'd use it.
Charlie
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
Originally Posted By: JHZR2
Depends if you see more -20 or +20F conditions. Do you have the ability to use a block heater?
Can you get a diesel rated 0w-40?
I can plug in the heater sometimes so I probably should just do that more frequently. I have thought of getting an oil pan heater as well. I live up high in the mountains and temps tend to fluctuate a lot.
Depends if you see more -20 or +20F conditions. Do you have the ability to use a block heater?
Can you get a diesel rated 0w-40?
I can plug in the heater sometimes so I probably should just do that more frequently. I have thought of getting an oil pan heater as well. I live up high in the mountains and temps tend to fluctuate a lot.
dnewton3
Staff member
Consider the T5 in 10w30; been on sale at W/M for some time now at around $11.99/gallon. The cold pumpability of the T5 is basically as good (very, very close) as the T6, for a lot less cost.
All the HEUI systems really seem to respond well to 10w30; cold romp is signficantly reduced and start up is quicker. Most that make the switch, find it's fine for year round use.
Many people will rightfully tell you that the HEUI will shear oil, but that's primarily occuring with 15w40. 10w30 oils do not seem to shear much at all. It's almost as if the HEUI simply prefers a lighter grade, and if you don't put it in, the engine will create one for you. Wear metals and such have all been fine, even with the lighter grade.
If you're destined to pull VERY HEAVY loads a vast majority of the time, then perhaps the 5w-40 is the way to go, but most people don't fall into that use pattern.
All the HEUI systems really seem to respond well to 10w30; cold romp is signficantly reduced and start up is quicker. Most that make the switch, find it's fine for year round use.
Many people will rightfully tell you that the HEUI will shear oil, but that's primarily occuring with 15w40. 10w30 oils do not seem to shear much at all. It's almost as if the HEUI simply prefers a lighter grade, and if you don't put it in, the engine will create one for you. Wear metals and such have all been fine, even with the lighter grade.
If you're destined to pull VERY HEAVY loads a vast majority of the time, then perhaps the 5w-40 is the way to go, but most people don't fall into that use pattern.
Originally Posted By: dnewton3
Consider the T5 in 10w30; been on sale at W/M for some time now at around $11.99/gallon. The cold pumpability of the T5 is basically as good (very, very close) as the T6, for a lot less cost.
All the HEUI systems really seem to respond well to 10w30; cold romp is signficantly reduced and start up is quicker. Most that make the switch, find it's fine for year round use.
Many people will rightfully tell you that the HEUI will shear oil, but that's primarily occuring with 15w40. 10w30 oils do not seem to shear much at all. It's almost as if the HEUI simply prefers a lighter grade, and if you don't put it in, the engine will create one for you. Wear metals and such have all been fine, even with the lighter grade.
If you're destined to pull VERY HEAVY loads a vast majority of the time, then perhaps the 5w-40 is the way to go, but most people don't fall into that use pattern.
Thanks for the info. I'll check Walmart to see if they carry the T5 oil here. With my truck the injector control pressure fluctuates (+- 400psi) peaking at 2500-psi on startup, engine romps at the same time as the pressure fluctuations, and then ultimately dies. Hopefully a 10w or 5w oil will flow better at these temps.
Consider the T5 in 10w30; been on sale at W/M for some time now at around $11.99/gallon. The cold pumpability of the T5 is basically as good (very, very close) as the T6, for a lot less cost.
All the HEUI systems really seem to respond well to 10w30; cold romp is signficantly reduced and start up is quicker. Most that make the switch, find it's fine for year round use.
Many people will rightfully tell you that the HEUI will shear oil, but that's primarily occuring with 15w40. 10w30 oils do not seem to shear much at all. It's almost as if the HEUI simply prefers a lighter grade, and if you don't put it in, the engine will create one for you. Wear metals and such have all been fine, even with the lighter grade.
If you're destined to pull VERY HEAVY loads a vast majority of the time, then perhaps the 5w-40 is the way to go, but most people don't fall into that use pattern.
Thanks for the info. I'll check Walmart to see if they carry the T5 oil here. With my truck the injector control pressure fluctuates (+- 400psi) peaking at 2500-psi on startup, engine romps at the same time as the pressure fluctuations, and then ultimately dies. Hopefully a 10w or 5w oil will flow better at these temps.
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
Originally Posted By: daman
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
daman,
my local dealer has a couple pallets of the CH-4 0w-40, if you're interested let me know i'm heading your way new years eve
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
daman,
my local dealer has a couple pallets of the CH-4 0w-40, if you're interested let me know i'm heading your way new years eve
Originally Posted By: daman
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
This is the site:
http://www.greenpartstore.com/John-Deere-Plus-50-Synthetic-Motor-Oil-0W-40-Quarts-TY24349.html
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
This is the site:
http://www.greenpartstore.com/John-Deere-Plus-50-Synthetic-Motor-Oil-0W-40-Quarts-TY24349.html
Originally Posted By: roadrunner1
Originally Posted By: daman
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
daman,
my local dealer has a couple pallets of the CH-4 0w-40, if you're interested let me know i'm heading your way new years eve
Oh yea heading to the great lake state huh! lol, how much is this oil and in what kind of packaging?
anyone know about the CH formula? is it adequate for older and semi new diesel engines?
i see the above link has it for a good price..
Originally Posted By: daman
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
daman,
my local dealer has a couple pallets of the CH-4 0w-40, if you're interested let me know i'm heading your way new years eve
Oh yea heading to the great lake state huh! lol, how much is this oil and in what kind of packaging?
anyone know about the CH formula? is it adequate for older and semi new diesel engines?
i see the above link has it for a good price..
the exact price i can check on tomorrow, i know what they have is in 5 gal pales. i am guessing the last i bought was $110 per 5 gallons, give or take 10 bucks or so.
As already stated 10-30 may do the trick for better cold starts but if you are more inclined go with T6 Rotella 5-40 a very good oil with proven performance.Here in NC everyone runs 15-40 in their 7.3's but it's much colder where you are (although we do see some single digit temps it's mostly teens and even more often low to mid 20's)so 5-40 would be of course a better choice for you.My
.
Last edited:
Originally Posted By: daman
Originally Posted By: roadrunner1
Originally Posted By: daman
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
daman,
my local dealer has a couple pallets of the CH-4 0w-40, if you're interested let me know i'm heading your way new years eve
Oh yea heading to the great lake state huh! lol, how much is this oil and in what kind of packaging?
anyone know about the CH formula? is it adequate for older and semi new diesel engines?
i see the above link has it for a good price..
CH4 is good for anything that doesn't have cooled EGR (pre 2002).
Charlie
Originally Posted By: roadrunner1
Originally Posted By: daman
Originally Posted By: 01F450
I was looking at John Deere Plus-50 0W-40. It has CH4 classification and temp range of -40 to 122F according to the specs on greenpartstore.com. Is this a decent oil? Otherwise I could look at getting some Rotella 5W40 or a 10W30 locally. Oil choices locally seem limited for diesels, mostly 15W40. Thanks for the responses.
This is a old oil spec where did you find this at?
daman,
my local dealer has a couple pallets of the CH-4 0w-40, if you're interested let me know i'm heading your way new years eve
Oh yea heading to the great lake state huh! lol, how much is this oil and in what kind of packaging?
anyone know about the CH formula? is it adequate for older and semi new diesel engines?
i see the above link has it for a good price..
CH4 is good for anything that doesn't have cooled EGR (pre 2002).
Charlie
Originally Posted By: m37charlie
CH4 is good for anything that doesn't have cooled EGR (pre 2002).
Charlie
Well that was my first thought it would be going into a '98 so wanted to make sure.
CH4 is good for anything that doesn't have cooled EGR (pre 2002).
Charlie
Well that was my first thought it would be going into a '98 so wanted to make sure.
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