Viscosity Grade recommendation for Death Valley

[Fahrvergnügen]

That’s all well and good, but then why confidently respond when you’re wrong and argue textbook physics?

Like I said I was taught one thing when I was younger, but things have changed over the years and it may have been taught wrong then or is it taught wrong now. How do we know. Technology has Changed. Maybe some genius has busted the old things taught and have realized things are not that way and are different. You never know nowadays.

 

[ZeeOSix]

We didn’t go there to learn about HP and TQ

No wonder everyone at that class is confused. People who don't understand what HP is shouldn't be asking students questions about HP and torque, and giving them misinformation.

 

[ZeeOSix]

That’s what everyone thinks, that’s a question asked to the techs when I went to the Cummins classes for the ISV5.0 in the titan to get my certs so we could work on them. The question was how many people think torque makes horsepower everyone raised their hand.

And what did this Cummins "professor" say to everyone that raised their hand?

Those that raised their hand were basically right, if they added to their response that yes, it is torque that makes HP but specifically torque at RPM. Torque at 0 RPM is zero HP.

HP = (T x RPM)/5252

Engines only produce torque from combustion and forcing the piston down and turning the crankshaft. It doesn't work any other way ever since the first ICE with pistons, rods and a crankshaft was invented. Do some research on the definition of HP. It was defined by Mr Watt, and hasn't changed since.

 

[ZeeOSix]

Technology has Changed. Maybe some genius has busted the old things taught and have realized things are not that way and are different. You never know nowadays.

Physics hasn't changed with respect to HP. No "genuis" has redefined what HP is, lol.

 

[Fahrvergnügen]

Physics hasn't changed with respect to HP. No "genuis" has redefined what HP is, lol.

Hey look I don’t doubt anything these young wipper snappers are doing now. I mean hey they are changing genders and making people Believe they are the opposite sex. They are changing the whole body, you don’t think they can change physics.

 

[chris719]

Hey look I don’t doubt anything these young wipper snappers are doing now. I mean hey they are changing genders and making people Believe they are the opposite sex. They are changing the whole body, you don’t think they can change physics.

You don’t need to have gone to school to observe the relationship between torque and power. Ancient civilizations understood it. If you’ve proven anything it’s that you’re conclusively dumber than these “young wipper snappers”.

 

[ZeeOSix]

They are changing the whole body, you don’t think they can change physics.

They can only change physics in their minds with misinformation.

 

[Fahrvergnügen]

You don’t need to have gone to school to observe the relationship between torque and power. Ancient civilizations understood it. If you’ve proven anything it’s that you’re conclusively dumber than these “young wipper snappers”.

You must be from the north?

 

[userfriendly]

If your driving along at 70 mph turning 1600 rpm if you look at the load on a scanner, it’s going to be under a higher load, than if the engine is turning 2000 rpm at 70mph. The engine isn’t going to be under the same load, it’s going to be under less load with slightly more rpm at the same speed.

Let’s say for argument’s sake it takes 100 horsepower for your vehicle to maintain 70 mph.
100 horsepower at 1,600 rpm is the same load on the engine as 100 horsepower at 2,000 rpm.

 

[Snagglefoot]

I see what you are saying, however most if not all owner's manuals have a ambient temperature / Oil viscosity chart recommending thicker oil in summer time.

I have a same route I take many times and yesterday was 91F and my oil temp was about 12F higher than the same route when ambient temp is 64F. This is based on my records taking the same route and with pretty much same (no) traffic, same speed/rpm, etc.

Each engine is different and it's not a one-to-one correspondence but in my case 27F increase in ambient temperature resulted in 12F increase in oil temperature.

There is a reason there are all these recommended engine oil viscosity / temperature charts!
It is "based on science, not emotions!"

Let me rephrase that. Your oil temperature at 64 F was 12 F cooler than at 91 F. This was due to the extra cooling you got from the 64 deg air running over the oil pan. In any case can you tell us what the actual oil temperatures were?

 

[Snagglefoot]

Let’s say for argument’s sake it takes 100 horsepower for your vehicle to maintain 70 mph.
100 horsepower at 1,600 rpm is the same load on the engine as 100 horsepower at 2,000 rpm.

Actually, 100 HP at 1600 rpm is more torque than 100 HP at 2,000 rpm. There would be more torque in the crankshaft in the 1600 rpm version.

 

[billt460]

This video was posted in the other thread about, "What Makes A European Formula Oil?" Someone in that thread questioned where that piston came from?

It's almost identical to the damaged piston in the lower video short, that states it came from direct injection pre ignition. Has anyone had this happen to them, or know someone that has?

In Dave's short video, he mentions using a additive to help keep the injectors clean, so the fuel completely atomizes, and this doesn't happen. It's obviously a real problem because he's holding the results of it in his hand.

I wonder what the best additive is for this? I've been using Gumout Multi System Tune Up. But I wonder if there is a better product?

 

[ZeeOSix]

I wonder what the best additive is for this? I've been using Gumout Multi System Tune Up. But I wonder if there is a better product?

Redline SI-1 or Gumout Regane are also good complete fuel system cleaners. Not sure if Gumout Regane is better than the Gumout Multi System Tune Up.

 

[wemay]

Hey look I don’t doubt anything these young wipper snappers are doing now. I mean hey they are changing genders and making people Believe they are the opposite sex. They are changing the whole body, you don’t think they can change physics.

Squirrel!!

 

[SaberOne]

Haven’t been to Death Valley in a while, but living in Lizard Spit isn’t much better. When I spoke with the HPL rep., and based on my driving application, he recommended 5w40 and I’ve been using that ever since. That’s what they use in all the border patrol units, so if it’s a good enough for them…

 

[OilUzer]

It's not just the journal bearings, but all moving parts that have an oil film between them. The higher the RPM, the more heat is produced from oil film shearing and friction. The differential is a prime example.

I assume this where we get to hydrodynamic & EHL regimes vs. boundary lubrication regime in case of gears. No?

 

[kschachn]

You must be from the north?

You’re doing nothing but to further embarrass yourself in this thread. You did it before in your discussion with me where you called me names, and now you’re doing it again.

There are people who will not learn, and then there are people who cannot learn.

 

[TiGeo]

This is an amazing thread. Changing physics.

 

[Glenda W.]

A certain amount of respect is earned while admitting oneself wrong.

If not, all credibility is lost forever.

 

[TiGeo]

All of this because someone thinks they need a higher grade oil to drive where it's hot.