MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: Anonymous on February 9, 2004, 19:22

Title: Slow Warm Up
Post by: Anonymous on February 9, 2004, 19:22
How long does it take for engine to come up to temp.  I have to drive for at least 3 miles  s:?: :?: s:?:   My other car (the Focus  s:roll: :roll: s:roll:  ) is up to temp in less than half a mile.
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Post by: Anonymous on February 9, 2004, 19:30
I often get 10 miles before it's up to temp.
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Post by: Anonymous on February 9, 2004, 19:41
do you mean water temp or oil temp? Remember the dial on the dash is water, which will take longer on colder days...
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Post by: MRMike on February 9, 2004, 19:41
I take it your talking about water temp and not oil temp?  I thought the Oil took up to 10 miles
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Post by: Anonymous on February 9, 2004, 21:21
If you're talking about the temperature dial (water), it takes between 5-10 minutes on my car.
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Post by: Anonymous on February 10, 2004, 10:48
I used to run a 306 which also warmed up much quicker than the MR2, I believe this is because in a front engined car the radiator is close to the engine, so not only do you have less coolant in hoses, but the engine bay is much hotter and radiator is also warmed by radiated heat from the engine (esp manifolds) which gets you up to temp quicker than a rear engined car with a stone cold radiator that isn't getting any external heat.

As for oil/water temp, oil temp typically takes twice as long to come up as water (obvious if you have a car with both oil and water temp gauges).