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Old 02-27-2009, 08:43 AM   #1
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Icon6 Toyota Engine experts 3.3L V6

I read the wikipedia write ups.


I'll use the Lexus RX as example.

The second (current 09) gen started out as RX300. The old 3.0L V6 was ranked one of the best by Ward. 3.0L V6 was used by Toyota for a long time.

Then it changed to 3.3L. RX330 for only two years. It was the corporate V6 and used on the Hybrids too. Then it was replaced by 3.5L as the RX350. 3.5L is now the corporate V6 and will continue into the future 2010+. 3.5L is in just about car larger than a Corolla.

Granted that Toyota build great engines, why the 3.3L life cycle was so short?

Was there "something wrong" with it?

Wife like an (used) 2nd gen RX. Since the RX looks the same, I'm not sure if maybe I should skip the RX330. Get the older RX300 or pony up for the RX350. I know newer is aways better, but that's not the point of this question.
Thanks,
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Old 02-27-2009, 08:44 AM   #2
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Default Re: Toyota Engine experts 3.3L V6

My guess is that they just needed to stay competitive with the other manufacturers' power numbers.
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Old 02-27-2009, 01:59 PM   #3
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Default Re: Toyota Engine experts 3.3L V6

As the vehicles got heavier the larger engines were needed to keep the car competitive with the rest of the class. I used to work for a auto dismantler and I can tell you the 3.3 is a much better motor than the 3.0 it replaced. The 3.0 in 92-93 actually had problems with the heads cracking....
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Old 02-27-2009, 02:14 PM   #4
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Default Re: Toyota Engine experts 3.3L V6

didn toyota have problems with engines overrated and oiling issues?
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Old 02-27-2009, 02:45 PM   #5
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Default Re: Toyota Engine experts 3.3L V6

They are very reliable (I'm a toyota tech). The only problems I've seen were when people didn't change their oil.
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Old 02-27-2009, 02:47 PM   #6
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Default Re: Toyota Engine experts 3.3L V6

My guess is that the 3.3 was a refined 3.0 where as the 3.5 has had significant improvements over the original 3.0 platform? Imho, they're all very nice. I've driven all of them including all the hybrids.
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Old 03-02-2009, 05:40 AM   #7
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Default Re: Toyota Engine experts 3.3L V6

Thanks.

I guess during that time, the horsepower wars was still going on. 3.3L was just not enough, when there are 3.5L, 3.6L, and 3.8L around.

3.5L doesn't seem enough now (again) as everyone is moving to 3.7L.
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Old 03-02-2009, 06:03 AM   #8
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Default Re: Toyota Engine experts 3.3L V6

toyota engines V6 had issues with sludge.
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