why do replacement thermostats come in two temperatures (170 and 180 degrees)?

Asked by Mar 18, 2015 at 03:58 PM about the 1992 Honda Accord DX

Question type: Maintenance & Repair

4 Answers

Climate. If you live in a place that gets very hot and never gets cold, South Arizona for example you want the thermostat to open and begin coolant flow sooner than if you live in the NE and need a little more time and to keep your engine warm, from running to cool. Running too cool is hard on an engine. They have a wider range than that also, 165 to 190. New(er) cars should use strictly what the manufacturer specifies. Also, once the car is at operating temp it has NO difference in cooling capability

1 people found this helpful.

I got curious and thought to myself, self, you don't know that much about the 'big picture' about thermostats and opening temperatures ranges. So I researched. The thermostat sets a minimum, not a maximum temperature of your car's operating temp. You don't want too cool, I knew I was right about an engine running too cool being stressful. So a lower range will open sooner, and cause a longer warm-up time. A car needs to run hotter than 160°F. So if it's 40° below 0, the thermostat will keep your engine hot enough by partially closing. Sometimes you might see big-rigs with a canvas cover, with a zipper. But even with a 160°, the engine will still warm up past that and be fine. It sets no maximum. But needs to open before optimal running temp, if the car is designed to run at, say, 200°, and the 'stat doesn't open until 200°, it might get too hot before coolant has a chance to circulate. NO thermostat is strictly not good, either the coolant does not have time to dissipate heat because it's flowing to fast = overheating, OR the same too-fast, or more volume can keep an engine from warming up. Usually the former. Bottom line: use what manufacturer specifies

1 people found this helpful.
4,435

Personally I would usually get the higher temp myself for warm up purposes.

1 people found this helpful.

I agree JP. Since it has nothing to do with max.

1 people found this helpful.

Your Answer:

Accord

Looking for a Used Accord in your area?

CarGurus has 103,984 nationwide Accord listings starting at $950.

ZIP:

Honda Accord Experts

  • #1
    Tom Demyan
    Reputation
    2,610
  • #2
    JP1956
    Reputation
    2,220
  • #3
    Jonathan Ford
    Reputation
    1,690
View All

Related Models For Sale

Used Toyota Camry
759 Great Deals out of 73,416 listings starting at $1,195
Used Honda Civic
376 Great Deals out of 49,269 listings starting at $1,499
Used Nissan Altima
745 Great Deals out of 66,933 listings starting at $1,625
Used Honda Accord Coupe
66 Great Deals out of 3,958 listings starting at $1,997
Used Toyota Corolla
623 Great Deals out of 66,697 listings starting at $900
Used Nissan Maxima
211 Great Deals out of 16,570 listings starting at $1,650
Used Hyundai Sonata
387 Great Deals out of 47,831 listings starting at $1,900
Used BMW 3 Series
867 Great Deals out of 31,428 listings starting at $1,250
Used Ford Mustang
260 Great Deals out of 37,873 listings starting at $1,350

Used Cars For Sale

2018 Honda Accord For Sale
12 Great Deals out of 76,937 listings starting at $19,991
2017 Honda Accord For Sale
61 Great Deals out of 3,391 listings starting at $14,599
2016 Honda Accord For Sale
52 Great Deals out of 2,910 listings starting at $12,598
2015 Honda Accord For Sale
123 Great Deals out of 6,923 listings starting at $9,000
2014 Honda Accord For Sale
67 Great Deals out of 2,014 listings starting at $7,338

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.