Warming up the truck still necessary?

in any rate , i did let it warm up for 20-30 seconds and took off , it was a bit boggy but warmed up faster then just idling, also the computer only calculates your mpg once you start driving,it doesnt count your idling when warming up.How do I know this ? because my mpg was the same as before ,so i wonder what my mpg is really like??

 

No your computer inputs idling too.

 

Nah.

With vehicles now which are more reliant on computer controlled sensors, "warm up" isn't as important as the internals of the motor and tranny getting lubed up to get yourself going on the road.
Your average fuel economy varies but you can calculate it per fuel-up by dividing the total distance in miles or km traveled by gallons/litres respectively.

 

Driving cold vehicles sucks. Fuck the rules I'm gonna run it.

I can't stand when the power steering pump is howling and the trans holds on to every gear like it owes it money.

Summer? Get in, start, settle then drive. Winter? REMOTE START PARTY

 

Your cute

You don't run an engine with a choke, you run the engine with the choke on till the engine warms up, then you take the choke off and go to work. Diesel engines run like crap in sub freezing temps till they warm up, chainsaw engines and similar 2 stroke engines need to warm up or bog down when given gas. Its so clear your an engineer, you think thing works perfectly every time in clean test environment. Things are crap, they don't work right, some engines need to warm up to work right.

 

It's not the only the matter of "old school" or "personal habit" or extra fuel consumption.
Modern technologies and electronics cannot change physical properties of materials, even modern materials
engines made off. Every engine needs to reach temperatures when all tolerances are in the specs boundaries
(coefficients of thermal expanding or shrinking). More a matter of resource of engine and other mechanisms.
If you trying to keep your vehicle as long as you can, never hurts to give it 5 min of idling before start driving,
especially at temperatures between +5 C* and -40C* (Canada, Eh?)
If you don't care - just start and drive.
Cheers!

 

OOF

 

Coming off a gen 1 with 270k miles, a gen 2 with 306k miles, I can say, y’all over thinkin this. Start it up and drive it away.

 

So anyway, due to the "engine is air pump" fact of physics, closing the air path with a choke and dumping a far to rich a mixture of fuel and air into the cylinders will do what oh wise one? That's right, drastically reduce performance, making my statement in post 159 correct. You post here clearly states that choking an engine depends on engine temp, and is not need when the engine is warmed up, and removing the choke when the engine comes up to temp increases performance. Thank for finally seeing thing my way, it takes a big man to admit you where wrong.

QUOTE="saint277, post: 28009599, member: 324724"]Carbureted engines needed to warmed up for perforce reasons, very easy to stall one if too much load is given before the engine is warmed up. Also modern diesels need the be warm up from very cold starts, again for performance reasons. Don't think this holds up.[/QUOTE]

 

Haven't followed you anywhere, I'm an active member here and post on many threads. Choking an engine reduces its performance, this is a fact, chokes aren't needed once an engine warms up, another fact. There for a carbureted engine has worse performance until its warmed up and the choke taken off, just like I said in post 159. Unless you want to argue that a choked engine performs as well as an unchoked engine, which you can't, then you are wrong here. You own statements support my position.

 

However air is is what’s in the oil passages since oil has drained back while shutdown and it does take some measurable time to properly flow through all the passages. That’s why so many recommendations on reputable sites for a 15-30 second warmup.

 

Nah.

Exactly. At 6000 rpm, 18,000 explosions per minute for a 4 stroke 6 cylinder, 12,000 explosions for my 4 cylinder and you’ve just exceeded my 5500 rpm redline.

 

I start mine up and wait till the stereo goes thru it's shit and starts playing tunes.

When the tunes come on I put it in gear and drive.

 

After I pull out of my driveway, I have a 30 degree paved slope to climb. If the truck idles for about two minutes after a cold start, it goes up fine. Less than that, it chugs a bit going up. I’m sure the 0W-20 starts to circulate pretty quickly, but I imagine it takes a few minutes for the piston rings to rise appreciably from ambient temp, and the air/fuel mixture detonates better as it warms.

All of this is colloquial but I like to share experiences.

 

@Horseshoez

If you said that with a British accent, it wouldn't sound as harsh. lol

Seriously tho...I enjoy the banter (I'll call it that for now) between disagreeing parties.

I've also learned some things from this dialogue. Hmmm

I use to word-fight with my older step-sister as a kid--she always had to have the last word; mostly in a sarcastic way.

Those days are long gone...and so is my sister.

 

i actually read it in a British accent it loses its effect, kind of .
im sorry about your sister

 

@Blak Shinobi

lolol

Yeah, we Americans are just harsh when we want to get a point across.

I have a Scottish wife and I swear when she talks to her sisters, their swearing (not my wife; she doesn't swear around me) sounds less vulgar.

I hadn't seen my sister since around 2003...and she was forgone into drugs for reasons I won't get into. (Covid got her)

I hadn't cried since she left this earth on Jan 19, 2022. As a matter of fact, bringing her up in this convo kinda made me sad--but no tears yet.

 

https://blog.amsoil.com/all-you-need-to-know-about-oil-cold-flow/

• Gravity causes much of the oil to fall back into the oil sump, leaving components unprotected