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Acura TSX: Care & Maintenance

90 messages,  Last post on Feb 24, 2006 at 9:12 PM

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What is this discussion about? Acura TSX, Sedan

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#1 of 90 Acura TSX Owners: Care & Maintenance by KarenS HOST Jun 06, 2003 (5:24 am)
Taking good care of your TSX? Talk about wash, wax, polish, and maintenance routines/schedules here.
#7 of 90 which fuel for the TSX? by kman12 Sep 16, 2003 (5:49 pm)
One salesman told me I can use low lead (regular) fuel for the 2004 TSX. Another told me that would take away from the car's performance and said only to use the top premium fuel. Another salesman recommended the medium grade octane gas. I'm curious ot hear from other TSX owners about this.
#8 of 90 by uncledavid Sep 16, 2003 (6:27 pm)
Actually, everything you were told is technically correct. The TSX can run on low grade, mid grade, or high grade.   The issue with octane is that high octane gas burns later than low octane gas. Low octane gas is no less "powerful" or less clean, it just burns earlier. Now, in a high compression engine like the TSX, you want it to burn late. In a lower compression engine, you want early burning (like in an Accord). Hence, the TSX likes the higher octane gas. The Accord 2.4, in contrast, will not benifit at all from Premium and may even run worse.   In the old days, if you used too low an octane, you got engine "pings" that could cause damage. That won't happen in the TSX, because the engine has a knock sensor. If you use a lower grade gas, the TSX will adjust itself to prevent pinging. So, there is no risk to using lower octane and your engine should be fine.   Here is the problem though: in order to get maximum performance, you need premium. Otherwise, the knock sensor will intervene to prevent pinging. The result will be about a 15% loss in power.   Personally, I've experimented with regular, medium grade, and premium. I did notice a big difference when I went from Premium to regular. I didn't notice any difference when I went from Premium to medium. Under the right conditions, however, I imagine that regular might work fine.   Right now, I'm running Premium. It isn't that much more expensive and I want to maximize performance. But, I feel confident that Medium grade would work OK too, and regular would probably be fine in a pinch. Replies to this message: indy6pack (Sep 12, 2004 12:41 pm)
#9 of 90 uncledavid by samirrathod Sep 17, 2003 (9:26 am)
I would have to disagree with your assessment on fuel economy/performance in an Accord. My 01 Accord V6 saw a 10% fuel economy improvement when i switched from 87 to 93. So, for about 15% more $$, I'm getting 10% better fuel economy, and I feel like the extra 5% is worth the $$. It will keep the engine cleaner and running smoother.
#10 of 90 I meant for the K24 in the Accord by uncledavid Sep 17, 2003 (9:28 am)
The V6 is a different issue. The Accord V6 actually does benifit from premium fuel. The 4-cyl in the Accord, because the way it is tuned does not. Lots of drivers have reported gains in fuel efficiency and power by using premium with the Honda V6 engines.

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