[iqraceworks]

Originally Posted by feuer

wow one is ignorant for sure! Ok, I'll play, assume all the same: length, material, size, shape, blah blah...diesel will be cooler. Can you accept that? I have driven, worked on, and also own (currently) diesel fleet.

OK….I’ll play.

So you have two motors, one diesel and one gas. The exhaust (burnt air/fuel mixture) coming out of the exhaust ports on the cylinder head(s) is 900 degrees...on both motors.

You are telling me that if all things are equal, the end of the exhaust system (tip) on the diesel system is going to be considerable cooler than the end of the gas exhaust system?
I’m saying they should be very close, if not the same.

Now…..if you are trying to say that for the same amount of power output, a diesel engine will have a lower EGT than a gas motor…then yes, I will agree with you. But that’s not what you said…..you said that with the same EGT, a diesel exhaust will be cooler. That’s not true.

And to your comment that most diesels run a 170-180 oil temp….no way. 210-230 is a pretty standard oil temp for any newer diesel truck (and even old ones). Not sure where you got that from.
And to your comment that N54’s run 240 degree oil temps in cool weather….where are you getting that from??

[Jeef]

Originally Posted by iqraceworks

Yep

what's the temp outside? that probably is the reason behind it

[iqraceworks]

Originally Posted by Jeef

what's the temp outside? that probably is the reason behind it

High 70's..low 80's. No doubt them will get pretty hot....but he was saying they run 230+ oil temps in cool weather. And at least for every N54 powered car I've driven, that's not the case at all.

[feuer]

Originally Posted by iqraceworks

OK….I’ll play.

So you have two motors, one diesel and one gas. The exhaust (burnt air/fuel mixture) coming out of the exhaust ports on the cylinder head(s) is 900 degrees...on both motors.

You are telling me that if all things are equal, the end of the exhaust system (tip) on the diesel system is going to be considerable cooler than the end of the gas exhaust system?
I’m saying they should be very close, if not the same.

Now…..if you are trying to say that for the same amount of power output, a diesel engine will have a lower EGT than a gas motor…then yes, I will agree with you. But that’s not what you said…..you said that with the same EGT, a diesel exhaust will be cooler. That’s not true.

And to your comment that most diesels run a 170-180 oil temp….no way. 210-230 is a pretty standard oil temp for any newer diesel truck (and even old ones). Not sure where you got that from.
And to your comment that N54’s run 240 degree oil temps in cool weather….where are you getting that from??

from published manuals and looking at many many diesel engines oil temp gauges.
https://www.manualslib.com/manual/10...page=35#manual
177 to 203 for the MB engine.
https://www.manualslib.com/manual/10...2.html?page=32
160 to 195 for CAT engine
177 to 203 for the MB engine

Do me a favor, compare high temperature shear on the T6 vs gasoline oils for the n54 and possibly let us know about the oil Groups. It T6 in Group 3 or 4 and why isn't marketed as fully syntetic oil in all markets.

We need to end this as not the subject of the thread.

[iqraceworks]

So basically you completely avoided the whole "diesel exhausts run cooler" argument...good job.

Hard to have an educated discussion when you keep moving the goal posts around.......

[feuer]

Originally Posted by iqraceworks

So basically you completely avoided the whole "diesel exhausts run cooler" argument...good job.

Hard to have an educated discussion when you keep moving the goal posts around.......

I’m not, you are, by introducing the whole T6 discussion and you defend you premise how? From all of the n54s that you have driven? I can throw weight like that too. Since 2010 have and currently still own 2 x n54. Have covered 200k+ combined. In one have done 50 track day at least. Rebuild 3 x n54s (personally) So yeah, I know what oil temp they run on. Heat kills engines quickly. If heat was a problem with diesel they won’t last long and usually they outlast gasoline engines. Is completely illiterate guess. Damn logic. Let’s leave it on that.

[iqraceworks]

I'm still having a hard time trying to figure out what your point is? You just keep going around in circles.

Run whatever oil you want, nobody really cares

[feuer]

Originally Posted by iqraceworks

I'm still having a hard time trying to figure out what your point is? You just keep going around in circles.

Run whatever oil you want, nobody really cares

I made my point in the original reply to you: diesel oil isn’t better than gasoline oil based on you premise that diesel run hotter. I’m done.

[lukemcmullen45]

All y’all do on this forum is argue all I asked was if Amazon Basics has been run in the N54 by anyone...

I heard 1addicts is better lol

[feuer]

Yeah, we like to argue, but you have to do your part as well, like you have been doing, every 6 months or so, please start new AmazonBasics oil thread :-)

[Saif2018]

Originally Posted by lukemcmullen45

I am sure all of you have watched the project farm video below. From these tests, AmazonBasics is the winner between the two oils, but barely. And yes this is my second thread on this.

I basically want to know if anyone has tried this oil in their N54/N55? I know it isn't LL-01 approved, so don't mention that. It's 5w40 API SN certified however so is Liqui Moly. I'm very tempted to try this in my 07 335i. If I end up doing so I'll be sure to post a video, and also showing my Blackstone Lab Analysis. I'm a big fan of this oil, and I have had very good results in my families cars. (Also the cost is not the deciding factor in this, I am happy to pay for Liqui Moly if it is better, however I am convinced this Amazon oil is the best bang for your buck oil). Also considering I change my oil every 3,000 miles, it shouldn't damage anything...

https://amzn.to/2AFIXPH

Amazonbasics lol,

Haven't used liqui moly, I use Castrol Edge 0w30, LL04 spec C3 oil, which works well.

[Saif2018]

Originally Posted by iqraceworks

Not sure what diesel mufflers you have been grabbing ahold of.....but the one on my F250 will burn the hell out of you. EGT's in diesels can approach 900+ degrees if under a good load.

And normal oil temps on my truck run around 220-230 degrees ....more than what my N54 usually sees.

230 farenheight or 110 Celsius is normal for N54

Engine oil temps are usually between 230 - ~ 248F under normal driving on N54

[_N54]

I just use the basic Castrol Full Synthetic 5w30 and change my oil every 6,000 miles. I don't mind trying the Amazon oil and maybe changing it at 5,000 miles.

[iqraceworks]

Originally Posted by Saif2018

230 farenheight or 110 Celsius is normal for N54

Engine oil temps are usually between 230 - ~ 248F under normal driving on N54

It's rare that I get over 210F driving around town or on the highway with 80degree ambient temps......my needing is on the oil temp gauge is always pretty much straight up (210)

[JuniorB]

Lol, I was reading this, I can’t even comment on this.... I work on diesel equipment, I’ve never found a cool spot to touch, I’ve burned every spot on my arms. Honestly, all these newer diesels run hotter for a reason, and loose efficiency when they don’t. There has been seesaw answers for running 15-40 oils in cars, and why run a high performance oil if you don’t race, or track your car? There are excellent oil manufacturers who’s done the rigorous testing for us, I highly doubt any one on this forum is qualified to tell us which oil is the best.

[Saif2018]

Originally Posted by iqraceworks

It's rare that I get over 210F driving around town or on the highway with 80degree ambient temps......my needing is on the oil temp gauge is always pretty much straight up (210)

Just realised I've got a UK spec car, and straight up is 120 C/248 F

Have no idea why there is such a difference. UK cars 110 C to 120 C (needle half way through oil gauge, straight up) is normal.

[feuer]

Originally Posted by Saif2018

Just realised I've got a UK spec car, and straight up is 120 C/248 F

Have no idea why there is such a difference. UK cars 110 C to 120 C (needle half way through oil gauge, straight up) is normal.

Yes, 110-120c is normal, even on newer instrument clusters showing 170c/340f, just like on older that show 150c/300f, nothing to do with UK or US, or different planet lol, n54 runs 110/120c normal. If one has n54 that runs cooler they might have alter the coolant thermostat settings via tune or modified oil thermostat, or both are malfunctioning like stuck open.

[Saif2018]

Originally Posted by feuer

Yes, 110-120c is normal, even on newer instrument clusters showing 170c/340f, just like on older that show 150c/300f, nothing to do with UK or US, or different planet lol, n54 runs 110/120c normal. If one has n54 that runs cooler they might have alter the coolant thermostat settings via tune or modified oil thermostat, or both are malfunctioning like stuck open.

that explains it.

[feuer]

Originally Posted by Saif2018

that explains it.

Here, long old thread, showing how hot n54 can run:
https://www.e90post.com/forums/showthread.php?t=412156

My own posting showing operating temperature during -10c and -20 lol
https://www.e90post.com/forums/showp...postcount=1179
https://www.e90post.com/forums/showp...&postcount=235

Oil temp shows 100c at -10c and -20c. That is 210f. Someone telling me that their n54 runs cooler than that during 20c like 70f ambient is like telling me you can eat soup with fork lol

[Saif2018]

Originally Posted by feuer

Here, long old thread, showing how hot n54 can run:
https://www.e90post.com/forums/showthread.php?t=412156

My own posting showing operating temperature during -10c and -20 lol
https://www.e90post.com/forums/showp...postcount=1179
https://www.e90post.com/forums/showp...&postcount=235

Oil temp shows 100c at -10c and -20c. That is 210f. Someone telling me that their n54 runs cooler than that during 20c like 70f ambient is like telling me you can eat soup with fork lol

Interesting thread

Yeah lol, Hottest engine I've had no doubt.

Sometimes I put my hand on the bonnet after a hard drive, and it almost feels like I can cook an omelette on it