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New engines and gas mileage

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Old Oct 28, 2009 | 11:11 AM
  #1  
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New engines and gas mileage

So I've had my new engine for about 2000 miles. I'm getting dramatically better gas mileage, about 50 miles to a tank. I seem to remember a time with the old engine when mileage seemed to drop off and I wasn't getting the mileage I had previously.

I've seen many posts about people getting 260-280 miles per tank. (some claiming 310, these are the guys that also claim to get 40,000 miles out of their tires). I'm now hitting 260. I was getting as low as 185-200 with the old engine. At best 215.

So I'm wondering if poorer than average mileage is seen commonly with engines that fail. Or if that can be a predictor of premature failure in the rotary. Has there been any link or has anyone else whos engine has failed had a similar experience?

Last edited by jtmhjh; Oct 28, 2009 at 11:15 AM.
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Old Oct 28, 2009 | 12:40 PM
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i just purchased my car and i'm seeing 250ish filling up right when the light comes on... I did the math once, and I think I was getting 17ish miles per gallon?

are there any mods that INCREASE mileage somehow? I mean, outside of lightening the lead foot...
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Old Oct 28, 2009 | 12:45 PM
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From: santa ana, ca
^no, but simple maintenance like new coils and plugs may help increase mpg alongside getting a COBB AP and leaning it out
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Old Oct 28, 2009 | 01:00 PM
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if i need new coils and plugs on a new car, Mazda will have more issues than my gas mileage, haha
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Old Oct 28, 2009 | 01:06 PM
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From: NOVA
Originally Posted by jtmhjh
So I've had my new engine for about 2000 miles. I'm getting dramatically better gas mileage, about 50 miles to a tank. I seem to remember a time with the old engine when mileage seemed to drop off and I wasn't getting the mileage I had previously.

I've seen many posts about people getting 260-280 miles per tank. (some claiming 310, these are the guys that also claim to get 40,000 miles out of their tires). I'm now hitting 260. I was getting as low as 185-200 with the old engine. At best 215.

So I'm wondering if poorer than average mileage is seen commonly with engines that fail. Or if that can be a predictor of premature failure in the rotary. Has there been any link or has anyone else whos engine has failed had a similar experience?
I consistently get over 330 miles to a tank.
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Old Oct 28, 2009 | 01:31 PM
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From: Pleasant Prairie, WI
Originally Posted by Bigbacon
I consistently get over 330 miles to a tank.
Details please (highway, what speed...)
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Old Oct 28, 2009 | 01:39 PM
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^shifts at 3k or under for city and a constanst speed of anything under 72mphs on the highway
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Old Oct 28, 2009 | 01:43 PM
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From: NOVA
Originally Posted by dozer
^shifts at 3k or under for city and a constanst speed of anything under 72mphs on the highway
my commute is 60 miles a day. half in city half on highway. In the morning I just drive, on the way home though I mess around and do my red lining for the day. I do stay below 70mph the whole time though, even then I am the slowest f'ing car on the Dulles toll road. I know I will be the one that gets pulled over out of all cars on the road if I go any faster.

I also never use my car for short hops or full city driving.

Even when I had a shorter commute (10 miles each way in city) I was still getting over 300 (minimal lights and stops)

I am also not a jack rabbit starter...which is where you waste tons of fuel...

Last edited by Bigbacon; Oct 28, 2009 at 01:47 PM.
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Old Oct 28, 2009 | 01:44 PM
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From: Murdaland
Thats way to boring to do. Ill deal with the gas bill
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Old Oct 28, 2009 | 01:51 PM
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From: NOVA
Originally Posted by adamwzl
Thats way to boring to do. Ill deal with the gas bill
well I have no need to drive crazy all the time either. Also some what hard to do with the roads I drive to and from work on. can't do much on a one lanes road with no passing options and bumper to bumper traffic, among other traffic situations that are not worth the aggravation of being caught doing something stupid in.
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Old Oct 28, 2009 | 01:55 PM
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From: Causeway Tollbooth
What's a "jack rabbit starter"?
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Old Oct 28, 2009 | 01:56 PM
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From: NOVA
Originally Posted by Bullitt
What's a "jack rabbit starter"?
I thought that was the term for people who just punch the gas to the floor every time they start moving. So like you are at a red light and it turns green and they just floor it because, all the time. You probably see tons of people do this daily but just don't think twice about it.
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Old Oct 28, 2009 | 01:57 PM
  #13  
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From: Causeway Tollbooth
^Ah, thanks. I'm not a JRS. :P
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Old Oct 28, 2009 | 02:14 PM
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Wow, I think you are the EPIC Fail. kthxbi.
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Old Oct 28, 2009 | 02:24 PM
  #15  
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From: Causeway Tollbooth
^Yeah, needs to be bigger.
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Old Oct 28, 2009 | 02:37 PM
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Originally Posted by Bullitt
^Yeah, needs to be bigger.
Yeah, whatever. I'm not a huge Obama supporter but things like that are just ignorant. If your gonna make a statement, make an educated one.
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Old Oct 28, 2009 | 05:11 PM
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Originally Posted by 9krpmrx8
Yeah, whatever. I'm not a huge Obama supporter but things like that are just ignorant. If your gonna make a statement, make an educated one.
Ignorant? Probably not the topic for this forum, but if you can't see the obvious Marxist leanings in his writings, policies, and Czar appointments, you're just not paying attention. As far as educated, its certainly true that its possible to be educated beyond one's intellect, but it would be difficult to be more educated than I have been.
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Old Oct 28, 2009 | 05:15 PM
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Yea! another Obama hater.
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Old Oct 28, 2009 | 05:39 PM
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Yeah, there are 3 or 4 of us now. We hold secret meetings.

I can take the sig down since its hurting people's feelings. Never let it be said that conservatives aren't sensitive and compassionate.




There. All better.

Last edited by jtmhjh; Oct 28, 2009 at 05:44 PM.
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Old Oct 29, 2009 | 08:09 AM
  #20  
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From: Murdaland
Originally Posted by Bigbacon
well I have no need to drive crazy all the time either. Also some what hard to do with the roads I drive to and from work on. can't do much on a one lanes road with no passing options and bumper to bumper traffic, among other traffic situations that are not worth the aggravation of being caught doing something stupid in.

Yeah your right in NOVA the worst place in the U.S to drive. I sware VA drivers are the dumbest...

I drive on 50 west/east everyday on the MD side. Traffic is always moving 80+, unless there is someone from VA infront driving 60mph in the fast lane that wont move over so 20 ppl have to cut in a out of traffic to get around... I seriously hate VA drivers with a passion. /rant

But when you have no control with b2b traffic and one lane roads then your benefit is better gas mileage . But I was thinking someone would only shift 3k or lower and drive slower than 70mph all the time, even if they had an open twisty road ahead with no traffic and not a person in sight. If someone drove an rx8 shifting at 3k on a twisty with no traffic. I'd ban them from their car and tell them to get a civic. .
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