Last post on Dec 03, 2012 at 3:46 AM
You are in the Subaru B9 Tribeca
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Subaru B9 Tribeca, Automotive News, SUV
#299 of 723 Re: 2008 Lexus RX 350 mpg [avery1]
Sep 17, 2007 (12:40 pm)
A 1999 RX 300 AWD has 220 horsepower/ 220 torque compared to Tribeca's 256 horsepower/247 torque. Tribeca delivers roughly the same fuel economy as your RX 300, and has over 10% more power. Of course, the Tribeca's also 8 years newer. Subarus often seem to take 15,000 miles or so to really "break in" in the engine, so it's possible some of these new owners will see increases in mileage over time.
#300 of 723 Re: 2008 Lexus RX 350 mpg [jeffmc]
Sep 17, 2007 (12:43 pm)
Actually, that engine was re-rated at just 190 SAE HP, which is the measure used for the Tribeca. So the improvment is even more pronounced.
#301 of 723 Re: 2008 Lexus RX 350 mpg [ateixeira]
Sep 17, 2007 (7:48 pm)
Thanks for the correction, juice.
Hopefully Tribeca will see a little bump in fuel economy with direct injection in the 3.6L H6 in a couple years. There's always room to improve.
#302 of 723 Re: 2008 Lexus RX 350 mpg [avery1]
Sep 18, 2007 (4:16 am)
It's always better to get real mileage #'s.
I have 28K on my "06 Tribeca and I'm getting 16/23 on premium. On a long Hwy run I'll see 25-26.
#303 of 723 Re: 2008 Lexus RX 350 mpg [css1]
Sep 18, 2007 (8:05 am)
That's a different engine, though, compared to the new 08s.
#304 of 723 Re: 2008 Lexus RX 350 mpg [ateixeira]
Sep 18, 2007 (8:17 am)
The new engine's rated a little higher (taking the new gov't rating method into consideration), isn't it?
#305 of 723 Re: 2008 Lexus RX 350 mpg [jeffmc]
Sep 18, 2007 (8:32 am)
Same, actually. It's rated lower, but when you adjust for 2007 vs. 2008 methodology, it's the same.
However, they now recommend regular fuel, so you'll still save about 10% on fuel costs.
#306 of 723 Latest MPG on the new 2008 Tribeca
Sep 18, 2007 (10:58 am)
Ok, took a little 120+ miles highway trip yesterday. MPG was 22.5. Started out with about 400 miles on the odometer. Speeds varied from 55 - 70mph, averaging about 65mph most of the time.
My breaking in the engine technique is to vary speeds for the first 500 miles mostly at highway speeds.
#307 of 723 Re: Latest MPG on the new 2008 Tribeca [toboggan]
Sep 18, 2007 (11:26 am)
I am averaging about 21-23....on mine with 800 miles on it. mixed driving.
Interestingly the sport mode on tribeca is not having bad effect on mileage. But Outback XT has bad mileage on sport mode.
#308 of 723 Re: Latest MPG on the new 2008 Tribeca [sweet_subie]
Sep 18, 2007 (3:48 pm)
Haven't used the sport mode much. Maybe after another 500 miles are added to the odometer.