Warm up

The "warm up" period for these new engines should be about as long as it takes you to click in your seatbelt. Wear an extra hoodie and be on your way.

 

I just start mine and drive most days. Takes about 3 miles or 6-7 minutes to be up to temp most days. If it’s real cold I might idle for a minute or two.

it’s been well below zero most of the last week here

 

This Winter has been weird. Cold as hell for a couple of days then warms up again. It is hard to set the temp in the truck when leaving as it is too hot or cold. So I leave the truck not thinking about in the morning if it will be cold. When morning comes it is - 30 or something like that. I start the truck remotely then step into an ice box because the setting are set low lol. Just a game

 

This

 

I thought it's been known for decades now that idling modern gaz engine is not good for them anyway. Drive it, start slow.

 

Regarding idling not being good for a "modern gas engine": Bearing load increases exponentially with rpms. Bearing load is nominal at idle. Bearing load cumulatively increases bearing clearance (bearing wear) as a function of bearing load/hours. EVEN IF you do scheduled oil/filter changes, bearing clearance is what eventually causes an engine to "wear out", provided you first don't ventilate the block with a rod while "overlanding". Assuming equal engine run hours, to say that idling an engine is worse for the engine than running it under load at higher rpms is counter-intuitive.

 

This is how it is for me too. I know pretty accurately on my commute, where it'll b warm enough to crank the heat. We get a month or 2 worth of sub zero days each winter.

 

-15* in the high elevations of Colorado, I turn the headlights off, hit the starter button, settle in belt on, music chosen, put in S Mode 3rd, roll out. Once the temp needle moves, seat heaters on, heater on high. The road is 40mph and in under 15 minutes, I have heat coming out.

 

I suppose I'm less the the camp of "excessive warming up the engine is bad" and more in the camp of "excessive warming up the engine is unnecessary."

I've yet to read any definitive evidence that a normal engine idle is actually bad for a modern engine. Not speaking to that point either way, just that idling a new Tacoma engine to "warm up" the truck is more of a waste of time and fuel. You'd be better served with a very short warm up period and driving the truck to temp.

 

I have my heat on auto so I've been watching timer on display and my auto heat kicks on after 3 to 4 min the I start driving

 

Long periods of idling is bad for an engine, the combustion pressure is low and allows more contamination to bypass the rings into the oil. It will also allow engine oil to bypass the rings and burn in the combustion chamber. These contaminates build up in the oil and wear out the oil additives design to combat the contamination. This makes the engine a severe duty cycle and requires more frequent oil changes.

I proper oiling system will not allow metal to metal component contact and there will be no excessive wear on the bearings regardless of idling or under load. Unless the oil is not changed because of the contamination and thins or sludges as a result of the excessive idling.

 

For sure . I added a catch can to aid in contaminates ruining the intake manifold . I hated the sludge build up in my old 3.0 and also my current truck. No more sludge build up on my oil cap during winter months

 

I'm guilty of idling too long...

The first step to recovering is admitting you have a problem.

I try to remember to set interior temps to the highest setting because there is no temperature program for startups in our trucks, but usually I'm pushing a good 5-10 minutes before I drive off. I live right off a highway and the way into town is immediately up a big hill, so taking it easy with 70mph traffic approaching is not the greatest idea, lol. I do what I can, but most times I need to accelerate with that in mind. So tranny and dif fluid temps/viscosity are still cold as ice in Montana winters. Really no winning for me where I live.

Was a big deciding factor in my push to regear too. The tranny is noticeably suffering with my current setup.

 

Lol

 

I also live close to the highway and I take it easy getting up to 60mph . I've monitored and it takes a good 20 min or so of doing 60mph for my transmission to get to operating temps

 

Yes, sometimes easier said than done. I'll sit for 5 minutes and wait for a clear exit if I have to, but still that traffic comes up quick some days. Passing zone isn't for another couple miles either, so they are stuck behind old grandpa Montana and his undergeared lifted taco

 

Lol have you thought about tuning your truck ?

 

Yes, doing it after the regear. Ordered 5.29s a couple months ago, hopefully soon. Already got it all lined up

 

I dunno, it just seems this engine runs cool in general. Even on a warm day, after driving for an extended period of time, the upper radiator hose returning coolant from the block to rad feels no warmer than 125 degrees.

I've driven Fords and Chevys that when you pop the hood, there's a massive waft of hot air. And that same radiator hose is twice as hot.

Not sure what it is....aluminum vs iron blocks?

 

When I lived in AK with my 2nd gen it saw a ton of idling to warm up and had zero fuel or contaminates in the oil samples sent to Blackstone and burned no oil. The oil was changed once a year and showed no additional wear from an extra 20 minutes or so of idling a day for about 6 months a year for four years.