I have a 1991 Accord 4cyl 5speed for which the recommended timing belt change is 90,000 miles. When I bought the parts, I also looked up later years. Somewhere between 1999 and 2001, change time goes up to 105,000 miles, and by 2004 it reaches 110,000 miles (minor difference).
Stick with your service schedules. There's so much more to a timing belt job than a timing belt: balancer belt, water pump, seals, thermostat, o-ring, adjusters, and tensioners.
Also, saying that driving easier makes the belt last longer is plain ignorance. The stress of bad driving goes on your engine, not the timing belt. This is even less true of a manual transmission, because you don't have the opportunity to jump down in gears while rocketing around (thus reducing rpm's and the rotation of the belt).
The rubber will go when the rubber goes, and there is also a time as well as a mile limit: about 6 years. Don't play with fate, because you've got an interference engine and a broken timing belt usually spells catastrophe. You can also reduce cost by doing it yourself.
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