Oddly, the Haynes is correct (for once). The correct rating is 194F (90C).
Do NOT run a cooler thermostat than specified. You will experience slightly
increased HC emissions and lower fuel mileage, along with accelerated
engine wear. If your dealer is telling you 180F, you need to find a better
If you are having cooling problems, the absolute WRONG way to "fix" them is
to install a cooler thermostat. The Integra's cooling system is very
efficient, robust, and reliable. Unless neglected...
An OEM thermostat is less than $20 and is STRONGLY recommended over
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.