BlitzSix

My 06 IS250 takes longer to warm up compared to other cars I've driven. I just got it this summer but now that it's cold outside it's more noticable.

It's around 0 (Celsius) now, I think that's around 40 degrees F (the freezing point), and it took the car exactly 20 minutes to warm up, from the point of turning it on to the point where it hit it's sweet spot where it stays when it's fully warm (just a tad before halfway point on guage). Car was basically turned on, and then driven very slowly within a minute. Most of that 20 minute drive was highway, going like 50-60 MPH.

Does this sound right to you guys? Seems a little long to me compared to other cars. But other cars I've owned were mostly inline 4s so maybe the v6 takes longer, that's why I'm asking.

How long does it take for your car to warm up in similar temps?

I'm running fully synthetic motul 5w30 btw, if it matters..

thanks

gc86

iTrader: (26)

I've noticed that my IS350 warms up slower than all the other cars i've owned.. but definitely does not take 20 minutes, even on a very cold night.

darkdream

how do you know when it hits the sweet spot when we have no oil temperature gauge?

BlitzSix

I'm talking about the coolant temp guage

lexboi250

iTrader: (10)

i thought you're not suppposed to let it idle for that long?

BlitzSix

Huh? I idled it for like 30 seconds. It took that long to warm up while driving..

"Car was basically turned on, and then driven very slowly within a minute"

IS-SV

My observation with IS350 is the same as yours.

bbyxmishIS

hmmm... i used to drive a bmw 325ci and my IS definitely takes a lil longer to warm up but yeahh not 20 minutes. =/

ssmoked

you all think that is bad?? my 250 takes 6 miles city driving to warm up fully, and thats in 50 Fahrenheit.

A/C

IS250 really warms up much longer than any car I've owned. I would guess that its the temperature gauge showing not too accurate info cus I can't think of another explanation. Although there's no real need to warm it up idle until its close to the middle of the temp gauge. With others I used to switch into Drive as soon as the gauge moves from top left position and drive somewhat slowly until it hits 1/4 of the gauge, but with IS250 I just take off after like 2-3 minutes.

Big Andy

I believe modern, direct injection gas engines are more thermally efficient in their combustion process than older ones so slightly less excess heat warms the coolants making them slower to warm up. Diesel engines are even more efficient so take even longer.

Fizzboy7

I too noticed mine takes a little longer to warm up. Not a big deal to me, but what I really dislike is the engine note when cold and accelerating. It makes a weasy tick tick tick sound where you can hear the engine parts moving and air sucking in and out. Sounds cheap as hell. But once warmed up, she's sewing machine smooth.

Emarati_K

all you need 5-10 minutes. then move on driving slow

Jefe's IS

I've also noticed it takes a while for the engine coolant temps to come up to running temps.

Jefe's IS

Yes diesels are very efficient and take a long time for the temps to reach normal operating temps. Part of the reason for this is the blocks are very thick and require a lot of energy to heat up.