2013 honda civic si k24 engine

[Hokiefyd]

Welcome to the forum!

I see little benefit in the Honda Genuine 0W-20, unless you just like the feeling of using the OEM oil (and there's nothing wrong with that). There are a lot of good 0W-20 options out there; I'd use the least expensive one that you like.

And by "that you like", I mean in terms of price/convenience/engine noise/etc. I've found that the K24 in our CR-V sounds a little different on various oils. I've really liked Mobil 1 0W-20 in the past. I actually prefer to run 5w30 in it. Why? Only because it's quieter and smoother on the slightly heavier grade. And with North Carolina temperatures, there are few cold-start benefits to the lighter grades of oil. Like you, I change the oil at 5,000 mile intervals in it because it's easy to remember and...well...I just LIKE changing oil. I've used both synthetic oil in the past, but believe I'll move forward with conventional 5w30. I change our Acura's oil at 3,000 mile intervals because it's extremely short-tripped to elementary school and back. So I use conventional in it as well (and 5w30). I'm loving the $2.33/qt Formula Shell when bought in the case at BJs lately.

I digress. Use whatever 0W-20 you like...I personally wouldn't spend extra to buy a certain brand, not changing it out every 5,000 miles.

 

[lubedude13]

I use 0w20 in my camry for 10k intervals and I have really good wear numbers. I recommend using a thin enough oil to do the job. That's why I have personally done UOA so "I" know what oil to use.

 

[jayg]

Originally Posted By: disneyfire

By the way....I don't go crazy with the engine...dont like to go over 6 k rpm...it redlines at 7


Sidenote:

7k redline? That's pretty low for an NA 4 cylinder. Even 25 year old SR20DETs and 4G63s revved to 7.5k with a turbo. Why is Honda being so conservative these days just because they increased their displacement? You would think they would increase displacement AND revs and complete with some of the other turbo cars in that segment.

 

[Redpatches]

Use a good quality full synthetic 0W-20 like Mobil 1, Pennzoil Platinum or even Toyota Genuine motor oil, whatever you like. But when it comes time to change the transmission fluid use only the Honda ATF-DW1 as Honda transmissions are known to be very "sensitive".

 

[fdcg27]

Originally Posted By: bubbatime
Originally Posted By: SF0059
I take exception to those recommending any weight other than 0w-20.


Do you think that same exact car is spec'd for 0W20 anywhere else in the world that is not affected by US CAFE requirements?

If that car is sold in Australia, it would not surprise me if Honda recommended 0W40 oil.

Many people drink the cool aid and believe that Honda "engineers" specify that the car use 0W20 oil. Simply not true. If the engineers had it their way, the cars would use 0W30 or 0W40 oil. The ONLY reason they use 0W20 is CAFE. Period. Honda doesn't care about engine longevity or engine protection.


Good to know that you're apparently in contact with Honda's engineers.
How else could you post what you have?
Now we'll all know who we should PM with any Honda questions, since you speak on behalf of their engineers.

 

[jayg]

Originally Posted By: Redpatches
But when it comes time to change the transmission fluid use only the Honda ATF-DW1 as Honda transmissions are known to be very "sensitive".




A Civic SI should have a manual transmission and I would imagine it would use Honda MTF.

 

[disneyfire]

Originally Posted By: jayg
Originally Posted By: disneyfire

By the way....I don't go crazy with the engine...dont like to go over 6 k rpm...it redlines at 7


Sidenote:

7k redline? That's pretty low for an NA 4 cylinder. Even 25 year old SR20DETs and 4G63s revved to 7.5k with a turbo. Why is Honda being so conservative these days just because they increased their displacement? You would think they would increase displacement AND revs and complete with some of the other turbo cars in that segment.


Red line starts at 7 ends at 8..
The 0-60 and 1/4 mile times are VERY competitive to any of the cars in its segment. Its faster than most..a tick slower than some...but the non turbo is a HUGE bonus (any car that can put out great performance like an S.I. without a turbo...GREAT,and with Honda reliability...the Civic S.I is almost impossible to beat considering performance, reliability, function ability....etc. Aand price. I got it new for 20,094 it lists for 23,500. Last on the lot just before the 14's It simply can't be beat for its price..even noir discounted.
Sure a Subaru wrx..is a tick faster...but not as reliable and 8k more. Camaro, Mustang...all slower. Yes, the SS and Gt is a tick faster. But on any given day...an S.i. will smoke 99% of the cars on the road that i would random encounter.
Im 43, so i don't "drag" in the city or some other nonsense that means absolutely NOTHING as to who's car is faster. But, it is nice to let it go every now and then, It is quite responsive.

 

[disneyfire]

Originally Posted By: jayg
Originally Posted By: Redpatches
But when it comes time to change the transmission fluid use only the Honda ATF-DW1 as Honda transmissions are known to be very "sensitive".




A Civic SI should have a manual transmission and I would imagine it would use Honda MTF.

Yep...6 speed manual. they all are.

 

[Hokiefyd]

Originally Posted By: jayg

Sidenote:

7k redline? That's pretty low for an NA 4 cylinder. Even 25 year old SR20DETs and 4G63s revved to 7.5k with a turbo. Why is Honda being so conservative these days just because they increased their displacement? You would think they would increase displacement AND revs and complete with some of the other turbo cars in that segment.


The K24's redline is set where it is because, due to the 99mm stroke, this engine has among the highest piston speeds in the industry. The engines you reference are smaller and with much shorter strokes. The SR20 has a stroke of 86mm and the 4G63 has a stroke of 88mm. The K24's long stroke is a big influence in its 7,000 rpm redline.

Example...look at the piston speeds of the three engines:

Honda K24 @ 7,000 rpm: 4547 fpm
Nissan SR20 @ 7,500 rpm: 4232 fpm
Mitsu 4G63 @ 7,500 rpm: 4330 fpm

Due to the longer stroke, the K24's pistons are traveling faster at 7,000 rpm than either the Nissan's or the Mitsu's pistons at 7,500 rpm.

Honda's revver was the 2.0L version of the K-series, the K20. It had a stroke of 86mm and a redline of 8,000 rpm, for a piston speed of 4514 fpm...nearly the same as the K24 at 7,000 rpm. So given the nature of the engine (long stroke for good torque in the low- and mid-range), a 7,000 rpm redline is quite generous.

 

[jayg]

Makes sense about the difference in stroke. Thanks for the info.

 

[Roob]

0w20 is the specced oil for that car, no other weight is approved for an OCI while under warranty.
The engine was designed for 0w20 and it will provide all the protection the engine requires, even for sporty driving, no need at all to use 5w20 or 5w30 as some have suggested.
The Honda blend oil is fine for warranty and 5k changes, if you want to try other oils look at TGMO and MGMO, Toyota and Mazda 0w20. Check out the specs on both oils in the VOA sections if interested. You will notice a difference using either of these oils and they are both full synthetics. They have high VI (216+) and low viscosity (35-36) plus an excellent additive package. If you want protection, highest efficency and great performance, those oils will do it...
You could also just stay with what your doing now, nothing wrong at all with the Honda blend and filters....

Enjoy the car...

 

[cutter]

No VTEC on the exhaust cam

 

[disneyfire]

Originally Posted By: Roob
0w20 is the specced oil for that car, no other weight is approved for an OCI while under warranty.
The engine was designed for 0w20 and it will provide all the protection the engine requires, even for sporty driving, no need at all to use 5w20 or 5w30 as some have suggested.
The Honda blend oil is fine for warranty and 5k changes, if you want to try other oils look at TGMO and MGMO, Toyota and Mazda 0w20. Check out the specs on both oils in the VOA sections if interested. You will notice a difference using either of these oils and they are both full synthetics. They have high VI (216+) and low viscosity (35-36) plus an excellent additive package. If you want protection, highest efficency and great performance, those oils will do it...
You could also just stay with what your doing now, nothing wrong at all with the Honda blend and filters....

Enjoy the car...


Appreciate the info