[Mycool]

Hi everyone,
I'm about a week away from owning my first Accord coupe. I'd love to have this car for the next 300,000 miles. In your opinion, which engine is likely to be the most trouble-free up until then? I drive about 33k a year, so that's 9yrs or so.
Thanks

 

[ThatsABigOne]

i4 IMHO.

 

[maximusbibicus]

I4. And it's not even close.

Next time you are in the mall parking lot, stuck in traffic...take a look. If you know how to identify the models you'll see most of 10 to 15 year old cars you will see will be Japanese I4's or full size American trucks.

 

[hondaguy2582]

Both are reliable. Just do the timing belt and water pump on the v6 every 100000 and it won't be an issue. Buy what you want, just take care of whatever you own and it will be good to you!

Sent from AutoGuide.com Free App

 

[Flyboy]

That's a hard question to answer because the I4 is a new engine and the V6 is an upgrade of the J engine series that they have been making for years. If you maintain your car religiously you should be able to get 300,000 miles. Of course you may have to replace parts when they wear out in addition to normal maintenance. My 2000 Accord Coupe is the V6 and it has over 160,000 miles. It runs great and uses no oil between changes. Will it last another 160,000 miles? I hope so because my 17 year old son is driving it and I am not going to buy him another car.

There comes a point where you have to decide if it's worth the money to replace major parts such as the suspension or the transmission.

 

[Nossan]

I4. And it's not even close.

LOFL! One engine is tried and true, the other new. I'm confident BOTH engines will run for 300K if properly cared for. Good thing for you the OP didn't ask about which transmission would be most reliable .

 

[dparky]

has DI been proven to work well after say 200k miles?

 

[outersquare]

It's a wash and no one really knows. Any problem areas are probably going to be with the tranny on either model.

Honda I4s are almost always bulletproof, but the 9G has too much new technology in it to easily extrapolate. The CVT in particular needs watching since other manufacturers have trouble with CVT reliability. Also DI is prone to intake carbon build up in European makes.

The J series V6s also do not have a good history of auto tranny reliability, but the 6 speed auto is a new model so reliability remains to be seen. When I was in high school this girl I know had a handed down Acura Legend, which were V6s, with 200K+ miles on it and it still drove fine. That was a C series engine though, but Honda did also make reliable V6s.

 

[awng]

It's a wash and no one really knows. Any problem areas are probably going to be with the tranny on either model.

Honda I4s are almost always bulletproof, but the 9G has too much new technology in it to easily extrapolate. The CVT in particular needs watching since other manufacturers have trouble with CVT reliability. Also DI is prone to intake carbon build up in European makes.

The J series V6s also do not have a good history of auto tranny reliability, but the 6 speed auto is a new model so reliability remains to be seen. When I was in high school this girl I know had a handed down Acura Legend, which were V6s, with 200K+ miles on it and it still drove fine. That was a C series engine though, but Honda did also make reliable V6s.

I'm pretty sure the 6 speed auto has been around for a few years and was used previously in Acura vehicles. I guess we'll find out in a few years how reliable they really are.

 

[ScarletExpress]

They're both made by Honda.

They'll both last forever

 

[Gator_CR2]

Both are very reliable. The I4 will generally need less and cheaper repairs & maintenance.

 

[MN_Runner]

Hi everyone,
I'm about a week away from owning my first Accord coupe. I'd love to have this car for the next 300,000 miles. In your opinion, which engine is likely to be the most trouble-free up until then? I drive about 33k a year, so that's 9yrs or so.
Thanks

I4: DI and CVT are unknown. MT6 - Very reliable.

V6: MFI, 6AT are proven reliable. MT6 - Very reliable. Timing belt job on V6 but DI may need valve cleaning and could be costly so a wash


If you want I4-Auto: I would consider 2015 Camry model
If you want V6-Auto: Maybe Accord or 2015 Camry model (no VCM on Toyota)

 

[Mick the Quick]

Ah yes, yet another DA thread in which we have a d_c_ (hint: rhymes with Mick) measuring contest between I4 and V6 owners, whereby each side contends that his/her type of vehicle is superior to the other and then comes up with a totally unsupported and speculative theory on why. In other words, my favorite kind of thread!

I4. And it's not even close.

Next time you are in the mall parking lot, stuck in traffic...take a look. If you know how to identify the models you'll see most of 10 to 15 year old cars you will see will be Japanese I4's or full size American trucks.

First of all, there are way more Japanese cars (especially cars sold 10-15 year ago) with I-4 than V6. For example, for Accord sedans, less than 20% opt for V6. Four (4) I-4's for each V6.

Moreover, this discussions is about I-4 vs. V6 Accords, why are you including Camry, Altima, Legacy, etc., etc. in your analysis at all?

Third, how do you deduce that each type of engine in 9th Gen Accord has the same reliability as the same type of engine in 10 to 15 year old Accords. They are completely new engines using drastically different technologies, designs and materials.

If you live in a culturally diverse neighborhood, you will see more 10-15 (well, 20, 25 or 30) year old cars. Common sense. I suggest you move. (I am just kidding on this one, don't flame).

Mick

 

[Baldeagle]

MN_Runner summed it up very nicely. The DI will undoubtedly require that dreaded carbon build-up on the intake valves and valve ports to be cleaned at least every 100,000 miles. (On a VW it is every 50,000 miles.) That requires removing the intake manifold and will cost at least $500, but is still cheaper than replacing the timing belt on the V6 every 100,000 miles.

I see that DI cleaning as good maintenance. Even MPFI engines still get gunky from the PCV valve vapors a EGR deposits. Cleaning the throttle body and intake manifold on any higher mileage car has major benefits.

But seriously, if you drive 33,000 miles per year, why get the V6? The I4 is perfect for highway use. If the I4 averages 5 mpg better, that saves you anywhere from about $35 to $60 per month depending on your exact driving environment. If you happen to like driving a MT, which involves minimal shifting if you drive a lot of highway, the 9th gen I4-6MT is as fast as the 8th gen V6-6AT. The I4-6MT is a fantastic set up - fast, frugal, fun and reliable.

 

[user320]

Deja Vu................another I4 vs V6 thread.

 

[plunk10]

my I-4 manual trans has been mostly bulletproof at 230K, the engine and tranny at least.

 

[cintocrunch]

Looking at 9th gen only I would say they are equal. Maintenance is the key and I think DI bumped maintenance costs with the I4 even with the V6. Both are excellent engines. Both are powerful, smooth and efficient. I wouldn't hesitate with either, it depends on the trim level/price/economy I'm looking for at that time. Right now I would get a Sport 6MT because I enjoy driving a manual and need a sedan for my 11 month old.

 

[berrnard]

not to beat a dead horse, but both imo.
as long as scheduled maintenance is done, i think 300k is quite reasonable. even though "they dont makem like they used to"

tanny? 6mt is always going to last and at.
CVT- i think honda did their homework and it will last also. honda doesnt just jump on the bandwagon when a new technology is discovered. they develop their own and test it for years.
that is one reason our interior technology is lacking. but hey, we didnt buy these cars cause they have space age materials or can talk to you did we?

 

[enchantedsky]

I realize most people on this forum are either from the United States or Canada, but the Honda CVT is old and RELIABLE technology which was implemented for DECADES in other countries in this world. Just because it is new for the new 2013+ Accord doesn't mean we don't know about its reliability. Just do some google searching about it.

I think Nissan in particular has given CVTs a bad reputation. They own the Jatco company which produces their CVTs and conveniently sweep problems under the rug whenever something pops up (ask anyone on this forum who owns a 2013+ Nissan Altima and traded it in for a 2013+ Accord).

As for direct injection not being reliable in i4 in the long run, that's not true. The Civic Si forum can teach you guys that driving at HIGH RPM helps remove carbon buildup before it becomes a problem. Ask any Honda mechanic before saying I'm wrong on this point.

The i4 is more reliable than a V6 engine because there are 2 fewer cylinders that can fail, and you don't have a timing belt to worry about. The METAL timing chain in the i4 will last 170,000 miles at least. Only enthusiasts remember that they have to change the RUBBER timing belt in the V6, and the average joe will never change it. It will fail in most V6 engines for that reason, thus making the V6 engine unreliable.

 

[internalaudit]

I realize most people on this forum are either from the United States or Canada, but the Honda CVT is old and RELIABLE technology which was implemented for DECADES in other countries in this world. Just because it is new for the new 2013+ Accord doesn't mean we don't know about its reliability. Just do some google searching about it.

I think Nissan in particular has given CVTs a bad reputation. They own the Jatco company which produces their CVTs and conveniently sweep problems under the rug whenever something pops up (ask anyone on this forum who owns a 2013+ Nissan Altima and traded it in for a 2013+ Accord).

As for direct injection not being reliable in i4 in the long run, that's not true. The Civic Si forum can teach you guys that driving at HIGH RPM helps remove carbon buildup before it becomes a problem. Ask any Honda mechanic before saying I'm wrong on this point.

The i4 is more reliable than a V6 engine because there are 2 fewer cylinders that can fail, and you don't have a timing belt to worry about. The METAL timing chain in the i4 will last 170,000 miles at least. Only enthusiasts remember that they have to change the RUBBER timing belt in the V6, and the average joe will never change it. It will fail in most V6 engines for that reason, thus making the V6 engine unreliable.

What is Honda's solution to carbon deposit build up? Lexus introduced port injectors and BMW is still blasting with walnut shells.

How's the reliability of the VCM in the V6?

If CVT is proven technology, which is there judders at low RPM's?

Just asking because I'm torn between an Accord (not sure whether I4 or V6) and a TLX ( I4 or V6) for my next vehicle.