Dear all sifus,

just wonder does anyone has civic fc, mine is year 2017, now my car the fuel consumption (FC) quite high, previously usually hangs around 16km/l, but currently its 10km/l to 12km/l max. wonder anything i could check to know the reason behind high FC?

second would that when going on uneven road, there would be 'thump' sound near the rear left of the car. but when going through a hump, it doesnt have the 'squeeking' sound, but recently i have changed the rear bearing and it happened after few month after changing the wheel bearing.

thanks all for the inputs!

Civic weakness - Lower arm bushes & absorber prone to fail (Confirm fail after few years of usage due to stupid bush design in it)

fuel consumption high? Check your tires air pressure, air filter, spark plugs condition and also what engine oil you use during your last change.

check for carbon build up on intake valves too

do you know how much would it cost to change the bush and labour?
and which workshop if you can introduce.
thank you.


noted, thanks for the advise

why not go back to the same workshop that changed your wheel bearing and ask them to check the sound

Bush and suspension issue.

Thanks all for reply

Full disclosure mine is a model 2021 civic fc 1.5 tcp (last batch).

My fuel consumption lowest is 9.7km/l and 10km/l (highest). Currently, is 9.7km/l.

Driven waja, pesona, polo, passat, c200, glc 200, can safely say civic fc is sluggish and not very responsive. Then again, once its driving smoothly on highway, its okay.

For short distance, where you expect a lot of stops, traffic or bends, i drive between 1-1.5k rpm.

For straight road or road is clear, i will let it go up to 2k rpm before i accelerate further.

The acceleration work best staggered rather than sudden acceleration, example going from 1k rpm and you step hard on peddle and it rav all the way up.

Not a car person but that's my observation.

you are driving an CVT, mind you.

Ya, am minded of that. Am adapting to it, which explains the fuel consumption. I keep reminding myself, it's a family car, not a high performance car. I've seen tones of comments/feedback on the CVT engine.

thanks for the feedback. the reason behind im asking is that i used to get around 15km/l mostly city drive, and also the reason i got such number because i pick the time on my travel, hence i manage to get the number i mentioned.

im somehow light footed when i drive except when i got frustrated then i might be heavy footed.

i think due to the damper/absorber issue it f*** up my fuel consumption and hanging around 9-11km/l.

the Civic 1.5 Turbo engine is extremely efficient if you are driving on the highway. can easily get 15 km/l
if you are stucked in traffic, every car will suffer

BTW, what is the mileage on your car? ever washed the throttle body?

agree with you on the efficiency of the turbo engine. i got 20km/l from penang back to KL.

160k km, i dont think i have done washing the throttle body

These 2 famous for slow grandfather's drive sluggish acceleration wo, especially I owned Polo Sedan 1.6 before. Friend brother's Passat 380 he said the acceleration also slow and need press pedal deeper before it gets responsive...

Didn't know Civic FC so bad on this aspect...

Bought the VWs in 2012. Boi those were the good times until the gearbox problems, the number of times dropping by Sg Besi Vw and the service bills came up to rm 2k+. It was time to call it quits. 🤣

Polo 1.2 TSI hatchback - https://www.carlist.my/used-cars/2012-volks...chback/12677847 . This car is zipppyyyyy...looks good in black.

Passat B7 CBU, still have it. Heat the seats to get the ball sacks warm. 🤣 Anyway, i think the acceleration is okay.

Different strokes for different folks i guess.

I see, yours Polo 1.2 TSI, then different. 1.6 NA mostly struggling...

Small displacement turbo = turbo lag.

Despite being smaller, less inertia, efficient turbo in modern engine, the lag is still there.
If you driven old school turbo, that is serious even more lag.

As Jason from Engineering Explained said - "Don't lug your engine."

Be it Turbo or NA.

Paddle shift is there for a reason. Downshift 2 gears, before you go.

This post has been edited by constant_weight: Dec 13 2023, 11:17 AM

not necessarily.

the latest Honda 1.5 L15B7 engine would happily disagree. peak torque at 1700 RPM with a CVT that very intelligently anticipates and maintains above 2 to even 3k RPM when you need it (braking, cornering, both up and downhills)
definitely utilizing the car's ESP/VSC systems' sensors to get data fed into the TCU (and ECU)

No, stop clinging to old stuff, newer tech is good enough to reduce turbo lag even on small displacement engine, well set up small turbo = barely noticeable turbo lag

Think of regular guy cruising at steady speed in overdrive. Then simply lug the engine to overtake.

versus another person who downshift to optimal gear before the action.

I'm sure you know the difference.

Braking and corner are usually fine. Car already downshift during corner entrance, plus we don't one shot floor to bottom on corner exit.

Of course certain corner, like should I use 2nd gear or 3rd gear situation, human make better judgement. On high torque, high power car, sometimes short shift 2nd gear, get to 3rd gear early on corner exit is faster especially on slippery road.

Yeah, and I'm telling you modern cars are getting smarter to compensate the lack of driver capability.

Just step on the accelerator pedal it just goes without lugging.

Auto downshift auto RPM spike auto full spool turbo ready to go effortlessly.

Hell, if that's not enough, there's always the S gear on the lever.
Civic FE e spec have no pedal shifts and never at any point of time i ever felt the need of pedal shifter.

This is coming from a hardcore die hard manual enthusiast. And i think that means something.

I have driven 2.5L, 3.0L NA with 200-250hp
*Unfortunately no luxury to experience 4.0L+ yet

I have driven old school 2.0T with big turbo lag

I have driven modern small (also tiny) displacement turbo

I have driven modern small displacement turbo with electric assist

I know how big difference of new/old tech. Driven them in dynamic situations well enough to know when the lag is barely noticeable, and when the weakness is amplified with lag at its worst.

Btw my small = including 2.0T.

Smarter, yes totally with you.

I think I said this before.
Modern transmission with fancy 8->2 direct shift is designed exactly for regular driver that trying to lug the engine.

Just I'm not the fans of dependent on step on accelerator then TCU downshift behavior.

It mess with the enter corner rhythm. Yes, new smarter AI downshift upon braking. Just still not all modern cars do that.

Question is how many gear to downshift?

Like Elantra Sport most of the time 4->3 upon braking. In slow speed hairpin, 2 vs 3 situations. Sometime I manual downshift additionally to 2, sometimes I don't, it depends.

On the case when 2 is needed, if I don't help the AI. It would be brake TCU 4->3, past Apex and during the exit TCU 3->2. Not smooth.

Then the Volvo with Polestar Engineered tune shifting is just awesome and spot on in almost all situations. But then the Sport mode (Actually named Polestar Engineered mode in car) is un-drive-able on normal road without manually short shift.

Guess no perfect world. Or BMW way with multitier Sport, Sport Plus.

160k time for walnut blasting. Direct injection engines need to clean carbon every once in a while because of the design. No product can clean it unless take apart engine and blast with walnut shells.

Why don't you shift the question as an answer?
CVT.

F1 had CVT and was banned. Why?

CVT took out the gearing equation that many were still struggling.

It was so good and boring that, Honda introduced fake shifts to spice things up. Totally unnecessary. But not everyone in the market understands and demands utmost efficiency.

I'd go a stretch and claim, Proton post Geely punch is so good that I've never ever felt the need for pedal shifters. The era of Preve / Suprima where they actually offered pedal Shifters were so bad, i went with manual Inspira and never looked back over 10 years ago. Manual is the way to go for me and if it isn't manual, the next best thing is whatever that's efficient and convenient that my manual doesn't offer. (And currently, latest Honda CVT drive train is a clear winner to me, with Proton punch a close second)

Engine braking and my brain process corner speed with gear number and rpm (sound) rather than speed itself.

Sometime I take short glance at speed, but just look. Action still driven by gear number, rpm (and others).

Give my CVT also I rather sequentially shift.
Being said that, I only driven EV in city and wild wild west freeway. Not sure what to take on the sense of speed on winding road yet.

BTW, at high speed eg:. 200km/h corner proceeding from a even higher speed straight, I have totally no clue how to handle those.
I think I will freak out when I finally make the green hell visit. For sure hire an instructor, lol.

This post has been edited by constant_weight: Dec 14 2023, 10:45 PM

Got Karak highway and Sepang if your machine is really capable.

No need green hell.

i think you going to like Hyundai N DCT version car as most of the review ( obviously i didn't try it since cant afford to import 1 over here ) praise the smart gearbox.

Sepang has places with low speed corner, follow by a long high speed sweep bend that one can accelerate to 200+ in the bend given a powerful car. Or long straight goes brake into a hair pin, with others mid speed 100+ corners.

Nordschleife is a bit different from usual GP track. It got a few long straight that goes into 5th-6th gear, some powerful car can reach top speed, then proceeding by a quick high speed turn. Some places 2 consecutive bends that treated a single long sweep, again after the long straight.

One example is after Aremberg, flat out down downhill Foxhole, Adenauer forest through few chicanes. Then a left bend uphill (slight lift off for high power road car, flat out for race car and low power car), followed by another quick left turn around 200 (some brake, maybe downshift to 5, make sure smooth and don't lock the rear wheel).




2nd example is after Pflanzgarten jump then right turn, left bend, then off you go, I remember the corners, but just don't know how to describe them. You can search yourself.
3rd example is Kesselchen the famous hillclimb section, 3 left bends flat out, a right bend flat out, then the interesting part is near the top with non flat out quick left turn at around 200 (maybe downshift to 5 depends on car), follow by a quick right turn flat out. **Then slow down to a sub 100 mid/slow speed turn, before entering the banked Carousel everyone seen on video.

Tourist usually take those bends at slower 160'ish, leaving more margin on the table. Still plenty fast.

Yes, Karak highway and also somewhere near Ipoh area. But not going for that on public road. Despite I'm not a good speed obey boy, still refrain from taking bends at those speed on public road.

Can't help you there bro
Nürburgring is too far fetched to me and definitely not something accessible on a daily/weekly/monthly basis.

I am also not interested in sims with the sole reason that there's no rig capable of properly simulating a manual shifting sensation, both gear shifting and/or clutch actuation, either that or those that are capable are out of my financial capability.

My point still stands that modern CVT today are good enough to not necessitate pedal Shifters or lock ratios.
That's just the direction moving forward similarly to how hybrids and EV can be very capable sportingly despite most of them don't even have a gearbox via KERS/brake regen/electric motors output modulations.
Hell, i personally don't like that direction either especially how they are doing away with manual gears and to an extent sports cars.

And coming back to this topic anyways - the Civic FC is definitely not as smart or efficient as the FE but it isn't completely junk and if you still cannot deal with it, there's always manual controls via pedal Shifters and locking the CVT ratios

This post has been edited by Quazacolt: Dec 15 2023, 05:46 PM

I'm facing the same fuel consumption issues that you mentioned, 140k mileage, have replaced tyres, spark plugs and air intake filter.

Any ideas what I should service/ check next to resolve the issue?