Cruising regularly at 4000 rpm

[humfrz]

Originally Posted by PetrolioBenzina

Assuming the were both broken in and driven the same, the measurements would be so close as not to matter.

Ermax needs to give us his definition of "cruising" and "extra wear".

So, you didn't answer the question .....

Reminds me of the very old joke where the guy ask a girl sitting at a bar, if she would sleep with him for $100. She said, NO! So, he asked her if she would sleep with him for $10,000. She said, YES! He replied, so we have established what you are ...... it's just a matter of price .......


humfrz

[PetrolioBenzina]

Originally Posted by humfrz

So, you didn't answer the question .....

Reminds me of the very old joke where the guy ask a girl sitting at a bar, if she would sleep with him for $100. She said, NO! So, he asked her if she would sleep with him for $10,000. She said, YES! He replied, so we have established what you are ...... it's just a matter of price .......

humfrz

We need to define "extra wear". We need to know Subaru's go-nogo specs. As was posted earlier, it will be the difference between 200k and 199k kilometers.
IOW, a difference utterly not worth thinking about.

The 4k RPM engine will be running more efficiently and at a higher oil pressure, too. Stronger oil film between parts, less "extra wear". Somebody must know a Subaru engine designer. Ask them for the answer.

You didn't mention what gear these cars were running in.

[Big D Design]

@ermax
I just went thru this topic all the way to page 16.

I live about 30 miles south of you, down here in SA.
What I hear from your explanations are just your opinion.
NOTHING IS THE REAL TRUTH.

I'm am owner of the FRS since May 2012. I have had to bite my tongue the whole thread with your comments. I believe you should trade in your FRS immediately.

Why? Well... you have put down the engine, and you surely don't know how to drive I car that was designed to rev and do it safely when driving around town. Me.... I decided not to put an aftermarket exhaust system on mine. I got the JDM tips and rev the living sheet out of the car when oil is warmed up. If you want to baby the car, and not rev it..... fine.... that is your choice. Please don't tell others to not drive this car like a race car on the street. It is made for it, and you are doing a bad thing by tell people that you should baby your car. Don't bang the gears. That's all you shouldn't do. @ermax.... How many Porsche 911 owners that are real drivers baby their rpms when driving around in a safe to accelerate area? The real Porsche drivers are just running 3500 rpm minimum and revving to redline, when driving for fun. I have lived this stuff for over 40 years. The FRS is designed to kane it and just use common sense with the drivetrain. It can rev all day long with a good synthetic oil, with proper warmup. Just remember when living in a colder climate, let the oil warm up. And last but not least.... the engine does not sound as bad as some say. It sounds like a blender, and to me better than the off beat Suburu sound of the WRX.
Drops Mike....

[humfrz]

Originally Posted by PetrolioBenzina

We need to define "extra wear". We need to know Subaru's go-nogo specs. As was posted earlier, it will be the difference between 200k and 199k kilometers.
IOW, a difference utterly not worth thinking about.

The 4k RPM engine will be running more efficiently and at a higher oil pressure, too. Stronger oil film between parts, less "extra wear". Somebody must know a Subaru engine designer. Ask them for the answer.

You didn't mention what gear these cars were running in.

The transmission gear isn't relevant to this comparison experiment. Whatever gears will keep the engine at that rpm and speed.

I just pulled numbers out of the air for comparison purposes ...... they could be modified slightly to fit the gear's available, if someone thinks that's relevant.


humfrz

[humfrz]

Originally Posted by Tcoat

Friction wears them out. That is why more oil is flowing at higher revs.

Is it friction, or is it heat caused by friction, that wears out engines .... ??


humfrz

[ermax]

I don’t baby my car. Jesus just look at my avatar. I’ve been autoxing for over 20 years. I’m obviously not babying my cars. My car sees redline probably 20 times a day and 99% of my drive is stop and go. There are a few fun roads at the beginning and end of my drive where I am not “cruising” where I can drive the car the way someone who owns a sports car would. But it sounds like someone has some serious reading comprehension problems. ALL of my posts were in reference to “cruising”. Please reread the tittle of the thread. It says “cruising”. If cruising in the highest gear possible was going to destroy the engine then literally every car on the road with an auto would be destroyed.

Maybe the problem here is I don’t know what the word cruising means. Does it not mean maintaining a consistent speed. Not accelerating or decelerating. The car does not need to be in the power band to maintain a consistent speed. Hence the reason the auto runs in the highest gear possible. If you need to pass a car you downshift to put it back in the power band. Just like the auto would.

My whole point all along has been. If you are “cruising” then your better off to do it at as low as reasonably possible. It’s just a general rule of thumb. It’s not going to wear out overnight. It isn’t going to blow. The extra wear isn’t easily quantifiable. I’ve had people tell me not to double clutch because it will wear out the clutch. Did I argue that point? No because it’s a fact. Pressing the clutch twice as many times will put more wear on it. Quantifiable, probably not. Will it put less wear on my syncros. Yes. Is that quantifiable. Probably not. Just because something isn’t easily quantifiable doesn’t mean it’s not a fact.


Man you would think we were discussing religion or something. All along I thought everyone brought the revs down when cruising. I’ve really triggered some anger here. All caps and everything.

[ermax]

Originally Posted by PetrolioBenzina

The 4k RPM engine will be running more efficiently and at a higher oil pressure, too. Stronger oil film between parts, less "extra wear". Somebody must know a Subaru engine designer. Ask them for the answer.



You didn't mention what gear these cars were running in.

For sure higher oil pressure but anywhere between 3500 and about 4500 my engine resonates like crazy. You can feel it in the shifter too. It doesn’t sound healthy and balanced at all. It just begs for a shift. Perhaps that’s just mine although there are threads daily with people referencing that RPM range making funny sounds and everyone assured them it’s normal. It seems intuitive that you would want to avoid an RPM band that causes vibration. Again, maybe it’s just mine. I got it in October used with 80k. I definitely cruise lower in this car than literally every car I’ve owned in the past due to it just not being smooth in that band.

[new2subaru]

Originally Posted by Jordanwolf

Really dislike this part about the MY17 final drive.

Mr. Wolf,

I will trade you pumpkins

[Audio]

Wow, that escalated quickly...

Sent from my Pixel XL using Tapatalk

[Jordanwolf]

Originally Posted by new2subaru

Mr. Wolf,

I will trade you pumpkins

Out of context, I was responding to someone who did not read OP lol. I like my final drive tyvm hah

[ermax]

Originally Posted by PetrolioBenzina

Ermax needs to give us his definition of "cruising" and "extra wear".

Cruising = Maintaining a consistent speed for extended period of time. Not accelerating or decelerating. For example, maintaining 30mph in a neighborhood. Maintaining a speed on the interstate with a safe distance in front of you. Example of not cruising. Rushing through a curvy road where you need higher RPMs for more acceleration and want the extra engine braking for balancing the car in a turn. Another example of not cruising would be in heavy traffic where your speed is constantly going up and down.

Extra Wear = Extra Wear. Do I really need to define that? I mean we know what the word extra and the word wear is right?

I think people are missing the cruising point in my posts. The OP specifically was talking about cruising. Not once did I say you should never exceed 2000RPM. Hell I exceed 7k every chance I get. I'm not even the first person in this thread to point out that higher RPMs = more wear. Even the OP pointed it out. Go argue with them for a while if you disagree.

[StraightOuttaCanadaEh]

Can't believe this thread is still going. I have created a monster!

I got my answer people, stop talking lol

[Tcoat]

Originally Posted by StraightOuttaCanadaEh

I got my answer people, stop talking lol

You're not my real dad you cant tell me what to do.


You didn't create a monster. You asked a reasonable question. Some people just don't like the reasonable answer to that question is all.

[Jordanwolf]

Originally Posted by ermax

Cruising = Maintaining a consistent speed for extended period of time. Not accelerating or decelerating. For example, maintaining 30mph in a neighborhood. Maintaining a speed on the interstate with a safe distance in front of you. Example of not cruising. Rushing through a curvy road where you need higher RPMs for more acceleration and want the extra engine braking for balancing the car in a turn. Another example of not cruising would be in heavy traffic where your speed is constantly going up and down.

Extra Wear = Extra Wear. Do I really need to define that? I mean we know what the word extra and the word wear is right?

I think people are missing the cruising point in my posts. The OP specifically was talking about cruising. Not once did I say you should never exceed 2000RPM. Hell I exceed 7k every chance I get. I'm not even the first person in this thread to point out that higher RPMs = more wear. Even the OP pointed it out. Go argue with them for a while if you disagree.

I wear extra clothes in the winter.