Quote:
Originally Posted by sanlen
What is about the stableness/reliable and quietness of their engine? Which one is better or they are the same?
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Both engines are very reliable if maintained.
The 5S-FE (4 cylinder) is not as well balanced (idles a bit rough), but it's a solid engine, and tolerant of lower octane gas. At this age, most of the oil seals are in need of replacement, although they tend to be slow leaks rather than gushers.
The 1MZ-FE (6 cylinder) has quite a bit more power, but has higher compression than the 5S-FE so it's not going to like low octane much (it'll run OK on 87 octane, but much lower than that doesn't make it happy). The late 90's 1MZ-FE also had a rep for being more prone to sludge than most engines, although both engines will sludge if the oil isn't changed on a reasonable schedule. The 1MZ-FE also is really wedged into the engine compartment of the Camry, so it's significantly more hassle to work on.