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Acura TSX

5068 messages,  Last post on Nov 17, 2008 at 10:59 AM

You are in the Acura TSX Forum. Your Hosts are pat & karens

What is this discussion about? Acura TSX, Sedan


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#5019 of 5068
Re: Regular Unlead vs. Premium? [fedlawman] by tradscott
Jun 29, 2007 (8:17 am)
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Replying to: fedlawman (Jun 26, 2007 11:47 am)

"Unless your engine is actually knocking, you'll never know if the timing is being retarded or not. "
 
That was my point exactly. Therefore you and I have no idea what effect running regular or mid-grade is having. In all probability, the timing is not being retrarded a great majority of the time and during this time, there is no downside. Also, if you don't live at sea level in a warm climate then you don't need as high of an octane level. Add to that the fact that the octane level is underrepresented in the pump number, and the "need" for premium in a normally aspirated mid-compression engine is dubious at best.
 
Also, the lower flash point of the higher octane gasoline is what allows a higher compression ratio.
#5020 of 5068
Re: Regular Unlead vs. Premium? [tradscott] by fedlawman
Jun 29, 2007 (12:22 pm)
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Replying to: tradscott (Jun 29, 2007 8:17 am)

"you and I have no idea what effect running regular or mid-grade is having."
 
Which is exactly why I follow the manufacturers recommendation and pay the extra 20 cents.
 
Superior engine performance, optimum economy/emissions, and added detergents to prevent/clean deposits on injectors, valves, etc. It's worth it to me.
#5021 of 5068
Re: Regular Unlead vs. Premium? [fedlawman] by nj2pa2nc
Jun 29, 2007 (12:39 pm)
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Replying to: fedlawman (Jun 29, 2007 12:22 pm)

how long have you owned your car, how many miles does it have and what is your mpg.
#5022 of 5068
Re: Regular Unlead vs. Premium? [nj2pa2nc] by fedlawman
Jun 29, 2007 (12:53 pm)
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Replying to: nj2pa2nc (Jun 29, 2007 12:39 pm)

I owned my 2004 TSX 6-speed for 2 years before I sold it. My TSX kissed the rev limiter on a frequent basis and I still averaged about 25 MPG in mixed city/hwy driving.
#5023 of 5068
Re: Regular Unlead vs. Premium? [fedlawman] by nj2pa2nc
Jun 29, 2007 (1:08 pm)
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Replying to: fedlawman (Jun 29, 2007 12:53 pm)

i think I will stick with regular gas-went on a 250 mile trip today-speed limit on basically straight flat highway is 70mph. set the cruise to 73 and I did good 35.6mpg. why did you sell the tsx-at least we agree on one thing 6 speed.have a great weekend-keep cool
#5024 of 5068
Re: Regular Unlead vs. Premium? [nj2pa2nc] by fedlawman
Jun 29, 2007 (3:51 pm)
Reply

Replying to: nj2pa2nc (Jun 29, 2007 1:08 pm)

"why did you sell the tsx"
 
The TSX was the ideal "sport/luxury" sedan for me when I bought it in 2003.
 
Fortunately, I made the mistake of taking my TSX to a high performance driving school - and I caught the bug. After I had a couple schools under my belt and my driving skills had significantly improved, I became dissatisfied with the TSX's sporting capabilities. Rather than invest in aftermarket performance parts and try to make the TSX into a sports car, I decided to replace the TSX with a RWD car with more "sport" and less "luxury" (weight).
 
I sold my TSX back to the dealer after 2 years and 18,000 miles, and bought a BMW.
#5025 of 5068
Re: Regular Unlead vs. Premium? [fedlawman] by nyccarguy
Jun 29, 2007 (6:46 pm)
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Replying to: fedlawman (Jun 29, 2007 3:51 pm)

fedlawman you're being modest...you didn't just buy any BMW, you bought the holy grail of BMWs:)
#5026 of 5068
Re: Regular Unlead vs. Premium? [fedlawman] by nj2pa2nc
Jun 30, 2007 (7:06 am)
Reply

Replying to: fedlawman (Jun 29, 2007 3:51 pm)

one of these years I am going to be the owner of a bimmer baby. (z-4)Love that car but not big enough at this time-one of these days.
#5027 of 5068
Re: Regular Unlead vs. Premium? [nyccarguy] by fedlawman
Jun 30, 2007 (8:26 am)
Reply

Replying to: nyccarguy (Jun 29, 2007 6:46 pm)

nyc - I kinda think of the 507 as the holy grail, but I agree, the E30 M3 is a terrific car.
 
nj - I also have a thing for the Z4. The M Coupe in particular.
#5028 of 5068
Re: Regular Unlead vs. Premium? [nj2pa2nc] by biker4
Jul 03, 2007 (6:39 pm)
Reply

Replying to: nj2pa2nc (Jun 29, 2007 1:08 pm)

You should try that same trip on premium. Someone else did the exact same trip using various speeds and regular and premium. The best millage - 55mph on premium (about 40mpg). Using regular lowered the millage so the lower cost of regular was offset by the lower millage.

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