While I understand that this is unrelated to diesel use, I have been using Delvac 15W40 in a couple BMW motorcycles. Both are air-cooled R1200 series and this oil is stout. I enjoy litte consumption between 5K changes. The engines have been started @ 25 degrees farenheit and blasted across the plains to the west coast in summer. My engines seem to run a little cooler than with conventional 20w50 oil. Many of my riding colleagues have switched to it and reporting the same. Much less expensive than motorcycle boutique oils.
Mobil Delvac 15w40
- Thread starter turbowhistle
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I'm curious--->Johnny: What reasons or thoughts or personal experiences made U put Rotella ahead of Delo or Delvac?
I know under normal operating conditions all these oils perform very close to one another. It's under severe working conditions and longer oci that these 3 start to seperate from one another.
Esc: within the 7.3L & 6.0L where the shearing just really pushes the oil too its limits.
I know under normal operating conditions all these oils perform very close to one another. It's under severe working conditions and longer oci that these 3 start to seperate from one another.
Esc: within the 7.3L & 6.0L where the shearing just really pushes the oil too its limits.
Also: I still haven't figured out, and wondered why--->Mobil-Pennzoil-Shell-ect... Have not produced HDD conventional 5w40 oil? since the conventional and synthetic debate will never end nor find a clean cut winner for the diesel application... why not just create a HDD conventional 5w40 oil... I only use the 5W-40 viscosity because it helps and makes my 7.3L start so much easier and faster, compared to the reg 15w40 conventional. I also think it just has a bit different attitude as well. Via many used oil analysis has shown that both the 7.3L and 6.0L shear their oil down to a 30wt and no less... Thanks to the HEUI injection system, these motors prefer a lighter viscosity oil anyway.
Originally Posted By: -SyN-
Also: I still haven't figured out, and wondered why--->Mobil-Pennzoil-Shell-ect... Have not produced HDD conventional 5w40 oil? since the conventional and synthetic debate will never end nor find a clean cut winner for the diesel application... why not just create a HDD conventional 5w40 oil... .
I think the reason is that synthetic bases (group III, IV and V) have much higher viscosity indices and therefore require much less VII (viscosity index improver) to make an oil with a wide spread between xW and 40 (low and high temp). In some cases, none.
What shears in the HEUI engines (DI 7.3, 6.0/6.4, recent Cats) is not the base oil but the VII.
Thus, a relatively shear-stable 5W40 is only feasible with a synthetic base.
Charlie
Also: I still haven't figured out, and wondered why--->Mobil-Pennzoil-Shell-ect... Have not produced HDD conventional 5w40 oil? since the conventional and synthetic debate will never end nor find a clean cut winner for the diesel application... why not just create a HDD conventional 5w40 oil... .
I think the reason is that synthetic bases (group III, IV and V) have much higher viscosity indices and therefore require much less VII (viscosity index improver) to make an oil with a wide spread between xW and 40 (low and high temp). In some cases, none.
What shears in the HEUI engines (DI 7.3, 6.0/6.4, recent Cats) is not the base oil but the VII.
Thus, a relatively shear-stable 5W40 is only feasible with a synthetic base.
Charlie
Pennzoil Long Life Gold seems to be like good stuff. Also carries a SM rating with a CJ-CI4+.
http://www.google.com.au/url?sa=t&source=web&oi=revisions_result&ct=result&cd=1&ved=0CAYQhgIwAA&url=http%3A%2F%2Fwww.pennzoil.com.au%2Fdownloads%2Ftds%2FPennzoil_LongLife_Gold_Heavy_Duty_Engine_Oil_15W-40_tds.pdf&ei=-0PKS5LgOovY7AO82PnyAg&usg=AFQjCNHsSYED5fk56FQf207l8cUtTAQqOg
Tried to get some at one stage, but only cold in bulk. Not cheap either, well thats here in Australia.
http://www.google.com.au/url?sa=t&source=web&oi=revisions_result&ct=result&cd=1&ved=0CAYQhgIwAA&url=http%3A%2F%2Fwww.pennzoil.com.au%2Fdownloads%2Ftds%2FPennzoil_LongLife_Gold_Heavy_Duty_Engine_Oil_15W-40_tds.pdf&ei=-0PKS5LgOovY7AO82PnyAg&usg=AFQjCNHsSYED5fk56FQf207l8cUtTAQqOg
Tried to get some at one stage, but only cold in bulk. Not cheap either, well thats here in Australia.
Originally Posted By: turbowhistle
Steve S,
Does your PS use any oil between changes? Any advantage with the Delvac?
Thanks
It uses about a quart between 5 to 6,000 mile oil changes . I really haven't noticed much difference between the oils I have used in the truck. The truck never gets worked hard.
Steve S,
Does your PS use any oil between changes? Any advantage with the Delvac?
Thanks
It uses about a quart between 5 to 6,000 mile oil changes . I really haven't noticed much difference between the oils I have used in the truck. The truck never gets worked hard.
Originally Posted By: -SyN-
I'm curious--->Johnny: What reasons or thoughts or personal experiences made U put Rotella ahead of Delo or Delvac?
I know under normal operating conditions all these oils perform very close to one another. It's under severe working conditions and longer oci that these 3 start to seperate from one another.
Esc: within the 7.3L & 6.0L where the shearing just really pushes the oil too its limits.
To tell the truth, I've never used Delvac 1300 before so that is why I listed it under the Rotella T and Delo.
I have had personal experience with both Rotella T and Delo back in my trucking days when I owned a very small fleet of rock hauling and dump trucks, using both MACK and Cummins powered equipment. At that time I got the best results from the Rotella T. Also, back when I was working for Shell, I had a lot of logging and agriculture customers and all of them had excellent results with the Rotella T products.
As you say, the others are fine products, I just have my favorites.
I'm curious--->Johnny: What reasons or thoughts or personal experiences made U put Rotella ahead of Delo or Delvac?
I know under normal operating conditions all these oils perform very close to one another. It's under severe working conditions and longer oci that these 3 start to seperate from one another.
Esc: within the 7.3L & 6.0L where the shearing just really pushes the oil too its limits.
To tell the truth, I've never used Delvac 1300 before so that is why I listed it under the Rotella T and Delo.
I have had personal experience with both Rotella T and Delo back in my trucking days when I owned a very small fleet of rock hauling and dump trucks, using both MACK and Cummins powered equipment. At that time I got the best results from the Rotella T. Also, back when I was working for Shell, I had a lot of logging and agriculture customers and all of them had excellent results with the Rotella T products.
As you say, the others are fine products, I just have my favorites.
Johnny, what made the Rotella better than the Delo 400. Unfortunately the Rotella in Australia does not carry any S rating, so i cannot use it.
A friend of mine was towing some very heavy loads daily cross-country with his 07 Duramax, and he noticed consistently more consumption with Rotella than with the GM-recommended Delvac. This was in the last year or two and in a stressed engine application. Under more normal situations, they might compare more closely.
Originally Posted By: vxcalais
Johnny, what made the Rotella better than the Delo 400. Unfortunately the Rotella in Australia does not carry any S rating, so i cannot use it.
In my application, the wear numbers on the used oil analysis, TBN retention, better shear stability, and longer oil change intervals. Also less consumption.
Johnny, what made the Rotella better than the Delo 400. Unfortunately the Rotella in Australia does not carry any S rating, so i cannot use it.
In my application, the wear numbers on the used oil analysis, TBN retention, better shear stability, and longer oil change intervals. Also less consumption.
CAT, Mack/Volvo, and Detroit Diesel all use Mobil Delvac technology for their OEM lubricants.
Originally Posted By: vxcalais
Johnny, what made the Rotella better than the Delo 400. Unfortunately the Rotella in Australia does not carry any S rating, so i cannot use it.
We don't have Rotella here, do we?
Johnny, what made the Rotella better than the Delo 400. Unfortunately the Rotella in Australia does not carry any S rating, so i cannot use it.
We don't have Rotella here, do we?
Originally Posted By: hedgehorn
Can you use Delvac in the newer trucks like the 2010 dodge with the 6.7L diesel?
It meets CJ-4 and Cummins CES 20081. Check http://www.mobil.com/USA-English/Lubes/PDS/NAUSENCVLMOMobil_Delvac_1300_Super.aspx to see if it meets the appropriate Cummins specification for your engine. I'm assuming it does.
Can you use Delvac in the newer trucks like the 2010 dodge with the 6.7L diesel?
It meets CJ-4 and Cummins CES 20081. Check http://www.mobil.com/USA-English/Lubes/PDS/NAUSENCVLMOMobil_Delvac_1300_Super.aspx to see if it meets the appropriate Cummins specification for your engine. I'm assuming it does.
I've only had experience with the Rotella 15W40 and the Delvac 15W40 from that list and the Delvac won out for me. I know I only run a small 3.0L Toyota TD but with the Delvac I noticed nearly no oil consumption at all and with the Rotella I went through 2L in 3000 miles. Both used oil analysis from each oil came back fine but I pick the one with lower consumption. On my next OCI I'm going to go with Rotella T6 5W40 and see how that goes.
I really prefer the delvac 1300 over the rotella t, but they are both pretty good oils. Does Mobil make a 10/30 diesel oil comparable to rotella t-5?
One of the miracles of Bob Is The Oil Guy. Delvac is as good as any of the top 3 HDEOS https://bobistheoilguy.com/forums/threads/delvac-1300-15w-40-2002-powerstroke-7-3.136559/
Originally Posted By: HM12460
I really prefer the delvac 1300 over the rotella t, but they are both pretty good oils. Does Mobil make a 10/30 diesel oil comparable to rotella t-5?
That's a really good question, and I don't have a perfect answer. I do know that Imperial Oil Canada (our ExxonMobil) markets and Esso XD-3 in 10w30.
I really prefer the delvac 1300 over the rotella t, but they are both pretty good oils. Does Mobil make a 10/30 diesel oil comparable to rotella t-5?
That's a really good question, and I don't have a perfect answer. I do know that Imperial Oil Canada (our ExxonMobil) markets and Esso XD-3 in 10w30.
I used Mobil Delvac 1300 Super LE 15w40 for a long time. It's a very good oil but it's conventional and it seems to degrade quickly for that reason. I'm thinking of using synthetic 5W-40 in the future for better cold viscosity and better viscosity retention over time.
I'm currently experimenting with 5w30. Although my engine is running much better and getting much better fuel economy than with 15w40, the oil consumption might have gone too high and I might switch back to xW-40 oil, preferably a synthetic 5W-40.
I'm currently experimenting with 5w30. Although my engine is running much better and getting much better fuel economy than with 15w40, the oil consumption might have gone too high and I might switch back to xW-40 oil, preferably a synthetic 5W-40.
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dnewton3
Staff member
Gokhan - I've got to ask some fairly direct questions, because you've made some fairly heady statements. I don't mean to call you out, but I don't agree with what you said, and I want to understand your circumstances (diesel, gasser, older, newer?).
I've not seen Delvac 1300 suffer any great vis loss in most used oil analysis; quite the opposite, actually. In fact, it's been a stellar performer since the CJ-4 variant came out; the used oil analysis prove it. And to be honest, whatever 5w-40 you're interested in probably won't hold it's grade much better or worse than the 1300 conventional oil over a normal OCI. What proof do you have that the Delvac 1300 "seems to degrade quickly"? What OCI duration are you running? What equipment do you have it in?
You're in LA and worried about cold starts? That's plain silly. Your environment simply is not anywhere near extreme enough to warrant synthetics in regard to cold start cranking and flow.
What 5w30 are your using now? The PP? In that vehicle? Stick with that; you don't need an HDEO anyway.
I've not seen Delvac 1300 suffer any great vis loss in most used oil analysis; quite the opposite, actually. In fact, it's been a stellar performer since the CJ-4 variant came out; the used oil analysis prove it. And to be honest, whatever 5w-40 you're interested in probably won't hold it's grade much better or worse than the 1300 conventional oil over a normal OCI. What proof do you have that the Delvac 1300 "seems to degrade quickly"? What OCI duration are you running? What equipment do you have it in?
You're in LA and worried about cold starts? That's plain silly. Your environment simply is not anywhere near extreme enough to warrant synthetics in regard to cold start cranking and flow.
What 5w30 are your using now? The PP? In that vehicle? Stick with that; you don't need an HDEO anyway.
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