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#189014 - 04/28/06 09:08 AM Re: Oil for 2006 Honda Civic Si
The Critic Offline


Registered: 08/30/04
Posts: 19025
Loc: Walnut Creek, CA
The '06 RSX Type-S and the '06 Civic Si have the K20Z1 and K20Z3 engines, respectively. Though both engines may be similar, they actually have different viscosity requirements.

Both Amsoil and Mobil recommended the 5w-20 for the K20Z3 equipped Civic Si and 5w-30 for the K20Z1 equipped RSX Type-S. Tennisjon needs to check his user's manual to verify the recommended viscosity.

5w-30 may be used in the K20Z3 if one desires, though I personally doubt there will be a significant increase in engine life when 5w-30 is substituted for the recommended 5w-20. If Tennisjon is interested in using 5w-30, he should use 5w-20 until his 5-yr/60,000 mile powertrain warranty expires, then switch to 5w-30 to avoid hassles with Honda in the event of a warranty claim. My memory from prior conversations with Tennisjon on AcuraZine tells me that he does not service his own vehicle, and service centers are generally hesistant to install an oil viscosity other than the one recommended by the OEM, purely due to liability concerns.

My personal opinion only: Synthetic oils do not necessairly constitute a longer drain interval. There are other factors that will determine oil life other than the added oxidation resistance, higher TBN, etc in synthetic oil. For example, fuel contamination from short trips due to the engine rarely seeing normal operating temperature may justify the need for a shorter drain interval regardless of oil type, due to contamination.

The PureOne issue should really be put to death. They may be more restrictive than other filters but their flow certainly meets/exceeds OEM requirements, I'm sure. If flow is really important to one, they should look into the Napa Gold or Wix branded filters.

Although I personally do not see the need for a synthetic, it may not be a bad idea to consider one in this case. Pennzoil Platinum 5w-20, Mobil 1 5w-20, or Amsoil XL 5w-20 are all good choices. Napa Gold/Wix or Purolator PureOne Oil Filter. Change the oil when the Maintenance Minder System reaches 5%. Get an oil analysis after the second or third oil change.

If you're still have a shop do the maintenance, Walmart TLE does synthetic oil changes for $40 with the brand of your choice (M1 or Pennzoil Platinum). Just buy your Napa Gold or PureOne filter and bring it to them. Same goes for Jiffy Lube, though they use Pennzoil Platinum only.

PS- Consider switching your transmission lube to either Redline MTL, SF MTL-P, or Amsoil MTF at the first oil change. Jiffy Lube or equivalent usually charges less than $30 for labor if you bring the fluid.

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#189015 - 04/28/06 12:01 PM Re: Oil for 2006 Honda Civic Si
427Z06 Offline


Registered: 12/06/03
Posts: 7409
Loc: Austin, TX
The Critic, with such sensible posts, I may be able to sit back and become a spectator. [Cool]

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#189016 - 04/28/06 03:25 PM Re: Oil for 2006 Honda Civic Si
Titan Offline


Registered: 10/04/05
Posts: 2331
Loc: Charlotte Metro area
The Critic is Dope! [HAIL 2 U!] Obviously, I mean that in a most positive way!

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#189017 - 04/28/06 04:40 PM Re: Oil for 2006 Honda Civic Si
Nickdfresh Offline


Registered: 03/15/06
Posts: 4948
Loc: Buffalo, NY
Go for the gusto and use "German" Castrol Syntec 0W-30, unless you think Honda will be entirely anal on any warranty issues (I doubt you'll have any major ones). In that case, use Pennzoil Platinum Syn. 5W-30, AMSOIL 5W-30, or even Mobil1 5W-30...

And Hondas love a Wix/Napa Gold filter...

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#189018 - 04/28/06 06:33 PM Re: Oil for 2006 Honda Civic Si
tamu_man Offline


Registered: 12/31/05
Posts: 189
Loc: Atlanta
Honda specs 5w30 because the oil can get very very hot in this engine. At that point, the 30wt will act alot like the 20wt. I've used RP, RL, and M1EP in my 2006 RSX Type-S. All have worked exceptionally well, but once I did burn an entire quart of RP off during a 1 hour track session. Do what you wish, but it is a small, warm runing, high output engine.

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#189019 - 04/29/06 09:31 AM Re: Oil for 2006 Honda Civic Si
buster Offline


Registered: 11/16/02
Posts: 30244
Loc: NJ
The Critic makes some excellent points, especially from such a young lad. [Big Grin]

I think RL 5w-20 is the best "high end" choice if you drive it hard. A lot of other oils would get the job done also.

I just put RL 5w-20 in my Honda which only has 165hp, however, I do drive it hard. I think the RL 5w-20 gives you the best of both worlds. Low viscosity but the protection of a 30wt oil with it's HT/HS of 3.3.

*I will test the RL at 12k miles or possibly even 15k.

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#189020 - 04/28/06 10:53 PM Re: Oil for 2006 Honda Civic Si
cos Offline


Registered: 11/21/04
Posts: 1152
Loc: Metro Detroit
The Critic,

Nice post!

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#189021 - 04/29/06 03:14 AM Re: Oil for 2006 Honda Civic Si
Jay Offline


Registered: 07/16/02
Posts: 1600
Loc: Arroyo Grande, CA
quote:
Originally posted by The Critic:


...My personal opinion only: Synthetic oils do not necessairly constitute a longer drain interval. There are other factors that will determine oil life other than the added oxidation resistance, higher TBN, etc in synthetic oil. For example, fuel contamination from short trips due to the engine rarely seeing normal operating temperature may justify the need for a shorter drain interval...

I've been doing regular oil analysis on my '02 Acura K20A3 engine since the factory fill, and I don't find that the synthetics I've tried (M1 0w-30, M1 5w-30, M1 0w-20, and Synergyn 0w-20) last longer than Havoline 5w-20 dino or Valvoline Durablend. Just the opposite.

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#189022 - 04/29/06 11:23 PM Re: Oil for 2006 Honda Civic Si
427Z06 Offline


Registered: 12/06/03
Posts: 7409
Loc: Austin, TX
quote:
Originally posted by Jay:
I've been doing regular oil analysis on my '02 Acura K20A3 engine since the factory fill, and I don't find that the synthetics I've tried (M1 0w-30, M1 5w-30, M1 0w-20, and Synergyn 0w-20) last longer than Havoline 5w-20 dino or Valvoline Durablend. Just the opposite.

I think one has to be careful when making sweeping generalizations. Some synthetics aren't necessarily built for extended OCIs. One also has to be careful when using single use UOAs to draw conclusions. But I will agree that use of a synthetic doesn't necessarily guarantee a successful extended OCI.

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#189023 - 05/01/06 07:03 AM Re: Oil for 2006 Honda Civic Si
Tennisjon2002 Offline


Registered: 11/20/05
Posts: 40
Loc: NC
Thanks Mike!
A few things. I now do my own oil changes thanks to this site. And the recomended oil is 5w-30.

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#189024 - 05/01/06 07:04 AM Re: Oil for 2006 Honda Civic Si
Tennisjon2002 Offline


Registered: 11/20/05
Posts: 40
Loc: NC
double post...sry

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#189025 - 05/01/06 07:10 AM Re: Oil for 2006 Honda Civic Si
ChromiumSteel Offline


Registered: 03/13/06
Posts: 171
Loc: Oregon
I've always run M1 in Honda engines. Great results.

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#189026 - 06/04/06 10:24 PM Re: Oil for 2006 Honda Civic Si
EVOL Offline


Registered: 06/04/06
Posts: 9
Loc: OC, CA
quote:

PS- Consider switching your transmission lube to either Redline MTL, SF MTL-P, or Amsoil MTF at the first oil change. Jiffy Lube or equivalent usually charges less than $30 for labor if you bring the fluid. [/QB]

a lot of honda enthusiasts recommend staying away from synthetic transmission fluids since they are too "slick" to enable the syncros to operate normally, and cause grinding?

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#189027 - 06/04/06 11:15 PM Re: Oil for 2006 Honda Civic Si
Tennisjon2002 Offline


Registered: 11/20/05
Posts: 40
Loc: NC
quote:
Originally posted by EVOL:
quote:

PS- Consider switching your transmission lube to either Redline MTL, SF MTL-P, or Amsoil MTF at the first oil change. Jiffy Lube or equivalent usually charges less than $30 for labor if you bring the fluid.

a lot of honda enthusiasts recommend staying away from synthetic transmission fluids since they are too "slick" to enable the syncros to operate normally, and cause grinding? [/QB]
I have heard tons of good stuff about gm syncromesh fluid in honda's. Any opions on that stuff?

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#189028 - 06/04/06 11:28 PM Re: Oil for 2006 Honda Civic Si
sxg6 Offline


Registered: 05/23/04
Posts: 2422
Loc: ME
quote:
Originally posted by EVOL:
quote:

PS- Consider switching your transmission lube to either Redline MTL, SF MTL-P, or Amsoil MTF at the first oil change. Jiffy Lube or equivalent usually charges less than $30 for labor if you bring the fluid.

a lot of honda enthusiasts recommend staying away from synthetic transmission fluids since they are too "slick" to enable the syncros to operate normally, and cause grinding? [/QB]
I ran Red Line MTL for 85k on my '03 civic, and now im using Specialty Formulations MTL-P which says it has a group IV/V base, and no problems here. "Too slick" doesnt cut it for me, need some better reasoning than that.

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