Hi all....my previous car was V8..could members give me a realistic cruise speed for corolla 06 ..1.8 auto..i run it on mobil 1 and do frequent round trips of 2000klm /1200 miles... generally run at 110klm/70mph....dont want to harm the little car...........thanks for your help
Driving faster than 110 kph wont really harm your car, just reduce fuel efficiency. Wear-and-tear has more to do with how fast your engine is running at the crank (revolutions per minute). With an manual tranny, its possible to drive at a lower gear and keep your engine running in a dangerously high rpm. With an automatic, you much less likely to destroy the engine, especially since Toyota is known for being overly conservative with its shifting on auto trannys.
My 98' Corolla 4-spd is almost the same as yours (same engine and tranny, but no vvt-i on mine). At 110 kph (about 68 mph) my car usually settles at about 2100 rpm. Normally I drive at 60-65 mph (97-105 kph) on the highways because its the most fuel efficient speed. One time I was in a rush to my sister's house and I was cruising at about 85 mph (137 kph). Even at that speed, my car didn't go over 2500 rpm, though I'm sure my fuel efficiency was probably half as good though. Th engine doesn't start to get loud until you pass 3000 rpms. By that point, I'm going well over 90 mph (145 kph).