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YOUR RESEARCH996 MPG question
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Check yesterday and am getting 21.5 long term average according
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I just checked yesterday and am getting 21.5 long term average according to the car computer.
Leading evidence: 'Check yesterday and am getting 21.5 long term average according' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'manufacturer�s suggested rpm, lol' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check yesterday and am getting 21.5 long term average according' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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These are well within my abilities as I�ve had the engine and transmission out, done cam chains/tensioners, clutch and installed the IMS Solution (before the FSI build - which Jake gave me a $2k credit for on the build).
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The thread is currently at 997 posts which I find amusing as I replaced the 996 with a CPO 997 (see avatar).
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When my coils went bad I was still showing around 17 or 18 mpg but the car just ran horribly when it was warm (ran fine til it warmed up)...
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Got 198.7 miles and used 13.592 gallons, so 14.62 mpg.
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These are well within my abilities as I�ve had the engine and transmission out, done cam chains/tensioners, clutch and installed the IMS Solution (before the FSI build - which Jake gave me a $2k credit for on the build).
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Just took delivery on a 2000 911 C2 engine type M96/04. This is my first Porsche and I was wondering as I watch the fuel consumption - what is the MPG on these engines? I bought it on BAT - more on that experience later. Thanks in advance.
I get around 14-16 mpg running errands around town, and about 23-24 mpg steady highway speed. Hope that helps. A lot depends on how much I punch the accelerator. I also rarely rev the engine over 4000 rpm. I seems the sweet spot for my 99 996 is between 3000 and 3400 rpm.
I just filled up today. Got 198.7 miles and used 13.592 gallons, so 14.62 mpg. Since Covid, all of my driving has been in town, so a lot of idling at stop lights and just quick spurts to go wait at another light.
I have an 2002. Dash tells be I get approx 14 to the gallon w/ combo local and highway. Have a GT3 throttle body and IPD plenum. Don't know if I suck down more fuel with them or not. Run it along the rpm range between 3-6k pretty consistently. She needs her exercise with the proper interval training.
When I was daily driving mine 52 miles per day, I would get around 17 to 17.5 mpg.
That was mixed 50% high speed freeway and 50% stop and go traffic.
Now most of my miles are country roads on the weekends.
I no longer worry about gas mileage as all my miles are fun miles these days.
I average 17 around town. Not much traffic, but low speed and many stop signs. On the highway, at slow speed (like 55-60), I get up to 25mpg. But I regularly drive 80-ish on the highway, which puts my MPG back down to 20-21-ish.
My last 50 fill ups, covering 7 months and 13,200 miles my 03 4s averaged 21.445 mpg. Car lives above 3500 rpm whenever warm, sees triple digits whenever warm, and spends most time above 4k rpm.
^^^ This is closest to what I get. Since replacing my coils, I'm getting an average of almost 23mpg between around town & highway driving. This is a FSI Stage II 3.8L w/ IPD plenum and GT3 Throttle body. When my coils went bad I was still showing around 17 or 18 mpg but the car just ran horribly when it was warm (ran fine til it warmed up)... I can't say it lives above 3500 rpm though (more like 2600 - 3k with a few runs up to 4500 - 5k).
Rarely rev the engine over 4k rpm? You guys are crazy, I've owned 911's since 1992 continuously and can say except for first gear I never shifted under 4k. 2 of them were 996's with original imsb and never had a problem with either of them other than batteries and an alternator on one.
I think you're asking for trouble running the engine its whole life like that. I didnt beat the hell out of em but I drive em like they're supposed to be driven and I've never been let down.
My weekend loop is around 100 miles and I know I need to add about 8 gallons for that, sooo...around 12.5 mpg.
If you're getting more, you're probably doing wrong.
Yep, pretty much! My rib-jab is always "Are you buying it for the gas mileage?"
Foot down, keep the left foot and right hand busy, smile, then fill 'er up!
Gas mileage actually does matter, even if you are super rich.
I used to have a V10 M5, and my friend has a Shelby Mustang. Each are around 13mpg, which limits range and enjoyment when you have to stop every 220 miles for gas, especially when you want to get lost in the country and don�t always know when and where the next gas station is located. It can deflate the fun and add anxiety to an otherwise relaxing drive.
Plus, it�s cool these old cars made in a previous century are getting the same mileage as my wife�s 2019 BMW X3.
Admittedly I drive my '03 C2 in a fairly mild manner, but on country roads (speed limit 45-55, stop every couple miles), I get about 24. Cruising on interstate in 6th gear, I get 28.
I have no idea what the number would be in city, stop-n-go traffic.
I get around 20 mpg combined, and I rev it to 6-7k whenever I get the chance.
Although it perhaps doesn't really matter how much the gas costs, I think it's still good to keep an eye on your mileage as an indicator of any problems.
Dporto,
Two quick questions for you.
1. Since you have an FSI engine, how do you handle servicing it? Has FSI designated a shop that can handle it or do you take it to your preferred shop.
2. Why don't you run it above 4500-5000 rpm very much?
In my case, some of us just like to cruise. I'm not out to win any races, just love the driving experience as a whole. Sure, will punch it from time to time getting on the highway or down back roads, but most places I'm going I just want to hear the beautiful notes coming from the rear end.
I'm at 19-21mpg mixed. If I'm on the freeway for an extended time it will be better than 25. My speed on the freeway is 70-90 room pending.
GC996, I'm waiting for my 996 to come back from FSI in July. I plan to service it myself, including tensioner pads. But I don't expect to need to do that for quite some time. My understanding is that you can take it to the same shops you've been using all along. Total conjecture: the issue of using an indy might only be a problem if something very serious happened to the engine, at which point you might consult FSI. I'll let you know in 20 years.
This is the first car I've ever had where I've never checked the gas mileage. I figure I'm not driving it for that reason and I don't even wanna know.
Then again, I'm reading this thread...
Two reasons. (1) interested in sending my car to Jake in the next couple of years for his rebuild. (2) since its no longer an Oem engine after rebuild, not certain if Jake has specific shops that he wants you to work with that been trained.
Just getting my ducks lined up. Questions hit me when Dporto mentioned in the thread about having an FSI engine and his very good gas mileage.
00 C4. It's currently my daily. I get roughly 21 MPG with a mix of highway and city driving.
For me the car performs best when warm so it's short drives that kill mileage more than city driving. I agree with one of the above posters it likes to be flogged a bit.
Fuel matters a lot. I get 10-15% better mileage with ethanol free gas (it responds better as well)
Something to keep in mind everyone is probably overestimating the MPG as the speedo reads high in these cars and therefore the miles indicated will be more than miles travelled
M
I just checked yesterday and am getting 21.5 long term average according to the car computer. This is lots of around town. I also drive 30 miles to work on the highway. Again, this is long term and over many tanks of gas. I feel pretty good about it.
Like some of the other comments, new plugs and coil packs in the last 5K miles.
I have the knowledge and ability to do my own work. If I have an issue I am uncertain about, I would open a ticket at FSI. Once you have a FSI reconstructed engine, there isn't much to do except routine maintenance. So generally speaking you can keep the hood shut and drive it. If you don't have the ability to do your own work, just find a trusted Indy and have them perform the normal maintenance following the guidelines in the digital manual you receive from FSI with your engine.
Thanks Wildbilly. With the responses it seems that the rebuilt is pretty a no brainer. Not to mention better gas mileage (keeping with the theme of the thread).
There is a simple rule for those that have been thru driver training for the track.
"You are either on the gas or on the brakes, but never coasting" .
Doesn't help with gas mileage, but it does help to exercise your car the way it was supposed to be driven.
Some interesting info and posts.
Of course when you apply a bit of Welly it's going to drink a bit more and pull your average way down.
I tend to not thrash mine, every other driver on the road knows what a Porsche is and that it is pretty flipping quick. So most of the time we don't have to prove that do we guys?
Very occasionally one might occasion some dick head in an Audi S/ BMW M....or an AMG Mercedes all splattering and backfiring out to impress his girlfriend...no problem crack on mate. Suddenly he untertakes you and cuts right across you...and one thinks to themselves.. are really sure about that mate?
Nice car mate but it's not one of these is it and you know it? 🥶🥶
You clock his girlfriend and you think, well she is pretty fit like...
She really needs to upgrade... I shouldn't really do this...
Restraint goes out the window....and in a very calculating way you chose your moment carefully and your Porsche will strike like lightening and deliver with no effort, no spluttering or backfiring.... just a very deep rumble...no fuss, no drama..job done 😁😁
I do 99% of my own service. Since having FSI build the engine the only things it�s needed are oil changes and coils. These are well within my abilities as I�ve had the engine and transmission out, done cam chains/tensioners, clutch and installed the IMS Solution (before the FSI build - which Jake gave me a $2k credit for on the build). As for why I rarely get the revs in the 5-7k range (It hits 4-4500 quite often but by no means �lives� there), there are three main reasons: Cops, Deer & other drivers... All three are fairly self explanatory so I won�t get too wordy. Where I live there are plenty of winding back roads where lower revs & speeds are plenty fun, challenging and Adrenalin inducing...
^^^NO^^^ There�s magic or mystery about a FSI engine besides it being properly built by one set of hands, with the best parts, rotating masses balanced, some special coatings, clearances, and techniques (gleaned through many years of experience and development). Service is service. If you use a shop you trust there�s no reason they wouldn�t be able to service a FSI engine....
Thanks dporto.
Good info. As I mentioned in a previous response, just getting my ducks lined up before I talk with Jake on an engine rebuild over the next couple of years as soon as my youngest is out of college and my Porsche "big project" account can fill up again.
Unfortunately, I am not as gifted with mechanical work as you and others may be. So I will need to rely on my current Porsche Shop which does a phenomenal job. Sounds like an FSI engine is low maintenance and all bolt on parts and service is done by owner or owners shop without a problem. This is very good news.
^^^ Exactly ^^^ If or when you speak with Jake, he makes this very clear. He not only builds the engine for the performance level you're looking for, he build it to last for a long time with proper maintenance (not jumping through hoops, just the normal stuff - oil, coolant, hoses, ancillaries). There's certainly nothing "wrong" with bringing your car to a shop - If you have history and trust them, it's all the better. Good luck
My cars calculation says 13.3mpg and that has not moved much for over a year now. Then again, thats definitely due to the way I drive which I would consider extremely spirited.
Ended up selling the car as a roller to Asahi. See
https://rennlist.com/forums/996-foru...wn-engine.html
for the full story of how Ahsai rebuilt the engine. His posts start at #88. Ashai did a fantastic job of detailing the entire process. If you are considering an IMS rebuild, this is
definitely
the tread to read.
The thread is currently at 997 posts which I find amusing as I replaced the 996 with a CPO 997 (see avatar).
When I purchased the 996, I had the (non-Porsche) dealer replace the IMS bearing as I knew it was a failure point. I now feel that the job was not properly done, as the motor shrapneled ~22,000 miles after I bought it. I probably would have been better off not touching the bearing. FYI, that dealer now longer exists.
My only (non-IMS) complaints about the 996 were the headlights and look of the dashboard (and to be honest, these are minor). Other than that, I think that it is one of the great bargains fo the automotive industry.
