First of all a 15w40 diesel oil is way too thick to get the good fuel milege. Thats why the truckers are slowly but surely moving over to the thinner oils like Mobil Delvac 1 5w40. Not only does the thinner oil get better fuel milege but the oil lasts longer and truckers still get the one million miles between overhauls even though they use the thinner oil.
new cummins owner with questions
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Cummins not only recommends synthetic 5w40 but they even private label the product under their Cummins Premium Blue brand of diesel oil.
I believe Cummins markets Valvoline Premium Blue 15w40 and Premium Blue Extreme 15w40. At least that is what all 14 of the Cummins dealers are me are selling. They are also using the Valvoline in bulk for the shop here as well. I think the gallon jugs on display in the parts department had a special Valvo/Cummins label though.
Fleetfilter, I have not cut apart a Wix, but I have cut apart a Fleetgaurd for a M11 and ISC at work. They were used filters, and I was curious to see what condition they were in. Sorry, but I didn't have a camera at the time. I can see about cutting another apart next week. I have to catch them before the Lube guys crush them.
Fleetfilter, I have not cut apart a Wix, but I have cut apart a Fleetgaurd for a M11 and ISC at work. They were used filters, and I was curious to see what condition they were in. Sorry, but I didn't have a camera at the time. I can see about cutting another apart next week. I have to catch them before the Lube guys crush them.
1040 is correct, but for the record Premium Blue Extreme is a 5w40.
I would run it if it were more readily available.
I would run it if it were more readily available.
Uhh both weights have similiar operating viscosities, so how could a 15w40 be thicker than a 5w40 at operation temp or provide less economy?
There is a advantage at cold startup, but how long does the average engine run before reaching operation temp....not long in the big picture.
FWIW I just use either 15w40 Delo or 5w40 Rotella, depending on the season, and a $4 Super Tech Filter in my '06 CTD.
Mine is a 2001. Other than bearing protection and engine cooling, which I understand is good with any quality oil, a major concern is the heat up there in the turbo. Because of the concern over coking in the turbo from hot oil in the turbo when the engine is shut down, any good synthetic has the advantage in engine protection.
I also added a pyrometer so I would know what the heat is up there and have a better idea of the heat up there. I shut down at 300 degrees. For a lot of running this in no problem, you just stop the truck and turn it off. But if you have just come up a long steep grade it can take a while.
I have been using the Mobil 1 Truck and SUV 5w-40 which has gone out of existance. I have enough for one more oil change then it may be Shell Rotella T synthetic or the Pennzoil Platinum, unless a decent priced source of the current Mobil 1 5w-40 shows up.
I also added a pyrometer so I would know what the heat is up there and have a better idea of the heat up there. I shut down at 300 degrees. For a lot of running this in no problem, you just stop the truck and turn it off. But if you have just come up a long steep grade it can take a while.
I have been using the Mobil 1 Truck and SUV 5w-40 which has gone out of existance. I have enough for one more oil change then it may be Shell Rotella T synthetic or the Pennzoil Platinum, unless a decent priced source of the current Mobil 1 5w-40 shows up.
Has anyone found a source for Fleetguard 19800E fuel filters in Alberta? I have been checking all my usual retailers but so far the dealer is the only one that sells the 7 micron version for my 06.
Thanks
HL
Thanks
HL
Howard,
If you have an authorized Cummins store, in your area, give them that number & they should be able to get it.
The Cummins Rocky Mtn. shop, here in Phoenix, was not aware of the 7 micron fuel filter but, when I produced a part number, they found it right away. Sometimes, they don't realize what they actually have in stock.
Joe Fihn
If you have an authorized Cummins store, in your area, give them that number & they should be able to get it.
The Cummins Rocky Mtn. shop, here in Phoenix, was not aware of the 7 micron fuel filter but, when I produced a part number, they found it right away. Sometimes, they don't realize what they actually have in stock.
Joe Fihn
True, but if one could put a number to it, I seriously doubt it would be more than five hundred bucks in fuel for the whole life of a OTR truck.
The argument that 5w40 syn diesel oil provides better economy because it's thinner, doesn't hold a whole lot of water especially when you factor in the additional cost of the synthetic.
Now if you want to talk about cold weather performance and the such, that's another story.
D-Roc:
Soot is almost entirely a product of un-burned fuel.
So the short answer is No.
The long answer is in an 07, there is almost never going to be an over-fuel event in the cycle. The new computers are going to do everything possible to keep emissions down. In the combustion chamber, this will include extra injections of fuel (a pre injection, power stroke, and post injection to burn up anything extra) and variable geometry turbos.
After the chamber, they have particulate filters and catalytic converters.
In a pre 07 truck (07.5 for most manufactors) the fuel is not going to have a huge effect on the soot. The biggest factor is going to be the fueling of the truck. If anything, you might (MIGHT) be lowering the soot level in the oil due to less sulfter. Sulfer is a huge contributor to particulate emissions, so you might not get the big puff of black smoke.. With less particulates, there is less to slide by the rings and get into the oil as soot.
It will probably have a similar tail-pipe effect as running bio diesel.. Less smoke and maybe less power.
I havn't touched the stuff yet, so I can't give first hand experience..
Remember, if you are planning on purchasing a Diesel.. This is the firs phase in of ULSD. It will not be REQUIRED at all service pumps until 2010.. But you are required to run it in any 07.5+ truck..
So.. For someone like me that lives out in the boonies of Idaho.. I doubt we will be seeing it until the very last date of Oct 15 this year.. And even then, I'm sure there will be pleanty of places that won't have it available until 2010.
Soot is almost entirely a product of un-burned fuel.
So the short answer is No.
The long answer is in an 07, there is almost never going to be an over-fuel event in the cycle. The new computers are going to do everything possible to keep emissions down. In the combustion chamber, this will include extra injections of fuel (a pre injection, power stroke, and post injection to burn up anything extra) and variable geometry turbos.
After the chamber, they have particulate filters and catalytic converters.
In a pre 07 truck (07.5 for most manufactors) the fuel is not going to have a huge effect on the soot. The biggest factor is going to be the fueling of the truck. If anything, you might (MIGHT) be lowering the soot level in the oil due to less sulfter. Sulfer is a huge contributor to particulate emissions, so you might not get the big puff of black smoke.. With less particulates, there is less to slide by the rings and get into the oil as soot.
It will probably have a similar tail-pipe effect as running bio diesel.. Less smoke and maybe less power.
I havn't touched the stuff yet, so I can't give first hand experience..
Remember, if you are planning on purchasing a Diesel.. This is the firs phase in of ULSD. It will not be REQUIRED at all service pumps until 2010.. But you are required to run it in any 07.5+ truck..
So.. For someone like me that lives out in the boonies of Idaho.. I doubt we will be seeing it until the very last date of Oct 15 this year.. And even then, I'm sure there will be pleanty of places that won't have it available until 2010.
And better wear protection since most 5w40s are at least group III synthetics and have better soot/deposit protection and better ash control (going to be a big issue starting next year) and.. and... and.....
Can you explain how adding more fuel (post injection) burns up "extra" fuel? There's already unburned fuel at the end of the combustion cycle so more is injected? Is it burning back though the exhaust to heat the cat? Sounds like a recipe for poor fuel economy. That doesn't make sense to me.
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Can you explain how adding more fuel (post injection) burns up "extra" fuel? There's already unburned fuel at the end of the combustion cycle so more is injected? Is it burning back though the exhaust to heat the cat? Sounds like a recipe for poor fuel economy. That doesn't make sense to me.
It IS a receipt for poor fuel economy.. Which is exactly why the 03s (which don't have that extra injection) get better mileage then the newer, same common rail system.
The extra injection is to increase EGTs and burn out more of the impurities.. On top of that, they are also retarding the cam timing drastically compared to the older trucks.. its the same old song and dance that the auto makers played during the first generation of emissions control.
The extra event is also to heat up the catalytic converters.
Starting next year, they will have even MORE injection events that will heat the catalytic converters, and the particulate filters.. Not to mention an EGR valve!!
So... Take all of these things into account, and you get: horrible, horrible mileage. I'm willing to bet that the diesel mileage drops down to about the same as a big block gas engine starting next year..
But look on the bright side. We get to pay more for fuel, get worse fuel mileage, and undoubtably have less dependability as these filters will eventually have to be replaced.. but at least us diesel owners can now run around with a smug attitude since we are saving the fuzzy bunnies! right?.. right?...
Having an older Cummins Turbo Diesel on our BEI Grape Harvester, would the 5W-40 Dello improve our starting? Our vineyard manager puts heating bulbs next to the oil pan on cold mornings when he is harvesting. Fall can be kind of chilly around here and he currently is using straight 30 weight.
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