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Honda CRV 100k too frequent synthetic change #4581577
11/22/17 05:32 AM
11/22/17 05:32 AM
Joined: Nov 2017
Posts: 2
AL
mi3grls Offline OP
mi3grls  Offline OP
Joined: Nov 2017
Posts: 2
AL
Hi. Purchasing a used 2008 crv EX 110k. Have no idea oil they used. I Read in this forum about switching to synthetic and some have stated about miles between changes etc and have hinted changing it too frequently can be bad. I am a 5month or 5k on synthetic and usually hit 5months first. Is this bad in general and bad for this crv? How should I switch over? Thanks

Last edited by mi3grls; 11/22/17 05:33 AM.
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581579
11/22/17 05:43 AM
11/22/17 05:43 AM
Joined: Jun 2016
Posts: 551
South OZ
KL31 Offline
KL31  Offline
Joined: Jun 2016
Posts: 551
South OZ
I'd go 7-10k miles or 12 months instead if you're using a full synthetic. After seeing many UOA's here, it seems that time running is as important as miles. If you're doing only city then it may be beneficial to change every 6k miles or 6-12months. But highway miles are easy on oil.


95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581592
11/22/17 06:17 AM
11/22/17 06:17 AM
Joined: Jan 2016
Posts: 800
NC
Vladiator Offline
Vladiator  Offline
Joined: Jan 2016
Posts: 800
NC
Frequent oil changes are good for the vehicle. You will never kill an engine with frequent oil changes. You will however kill it with stretching the Oil Change Interval beyond its capabilities.

Based on this I would change the oil and filter every 12 months or 7500 miles, whichever comes first.

BUT since you have no previous maintenance history - I would do two 3500 mile oil changes first to flush out whatever is in there. From there - if the oil comes out relatively clean, then switch to 7.5K mile OCI. If the oil comes out pitch black after 3500 miles - then do a few more short oil changes until the oil is relatively clean coming out of the oil pan. Either way change the oil every 12 months at most.
And do not forget about Transmission fluid, and transfer case & differential fluid (if AWD), and other essential fluids (coolant, powersteering, etc.)
Good luck with the new-to-you vehicle!


Best regards,
Vlad


2000 Lexus GS300-361k
1999 Lexus GS400-213k
2006 Toyota Camry-187k
2006 Toyota Highlander Hybrid-125k
2009 Scion xB-120k
2013 VW Tiguan-120k
2009 Toyota Tacoma-60k
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581610
11/22/17 06:46 AM
11/22/17 06:46 AM
Joined: Apr 2015
Posts: 94
Pennsylvania
bugeye Offline
bugeye  Offline
Joined: Apr 2015
Posts: 94
Pennsylvania
Good advice from Vlad. Be sure to check the oil level frequently keeping a record of any additions.

Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581623
11/22/17 07:07 AM
11/22/17 07:07 AM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
What Vlad said


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581632
11/22/17 07:26 AM
11/22/17 07:26 AM
Joined: Nov 2017
Posts: 2
AL
mi3grls Offline OP
mi3grls  Offline OP
Joined: Nov 2017
Posts: 2
AL
Appreciate the input and never thought of the short change and evaluate method. First time buying a used with this many miles, but with a maintained honda, a 108K is just stretching its legs on these 4 bangers.
I was always a 3 or 3 on dino, 4 or 4 on blend, 5 or 5 on synthetic. That'll be a very difficult habit to break as I am a drive until the doors fall off guy and that has pretty much happened.

I will be changing tranny, PS, Brake, filters, and all the others this weekend too. Start my maintenance guide from scratch.

I use mobil1 5w20 in 07 odyssey and I think this CRV takes the same, so it would be nice to get them on the same bloodline. Will definitely keep an eye on the oil level as I heard some discrepancy on what the "real" level is on this thing during a change and I am not sure what its appetite is yet.

Thank you. Gene

Re: Honda CRV 100k too frequent synthetic change [Re: SilverFusion2010] #4581633
11/22/17 07:28 AM
11/22/17 07:28 AM
Joined: Aug 2008
Posts: 18,287
Ontario, Canada
StevieC Offline
StevieC  Offline
Joined: Aug 2008
Posts: 18,287
Ontario, Canada
Originally Posted By: SilverFusion2010
What Vlad said


+1


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581638
11/22/17 07:34 AM
11/22/17 07:34 AM
Joined: Feb 2003
Posts: 7,418
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,418
Jupiter, Florida
I have a simple answer. Change with quality synthetic every 5000 miles.

At 105,000 do an oil change, at 110,000 do an oil change at 115,000 etc. Don't worry about the calendar time. It's a frequent enough schedule to help remove dino oil deposits, before the oil becomes too contaminated.


People who count on their fingers should maintain a discreet silence.
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581669
11/22/17 08:46 AM
11/22/17 08:46 AM
Joined: Feb 2017
Posts: 309
NC
fenixguy Offline
fenixguy  Offline
Joined: Feb 2017
Posts: 309
NC
I have the exact same car and change full synthetic every 5,000 miles. I have no evidence to back up if that's a good interval or not, but it works for me. It certainly won't hurt the car whatsoever. I also usually run a Fram Ultra for 2 intervals, or 10,000 miles. I'm sure that K24 would do perfectly fine on dino at 5,000 mile intervals as well.

If it were me, I'd do the 3x drain and fill of the trans and then 30,000 miles intervals. Change the rear diff fluid with Honda Dual Pump II. There is no transfer case.


'16 Frontier SV 4x4-PP/Nissan OEM
'08 CR-V EX AWD-Valvoline Syn MaxLife/Fram TG
'01 Civic EX-Valvoline Syn MaxLife/Fram UG
'00 Civic LX-PYB/Fram UG
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581678
11/22/17 09:07 AM
11/22/17 09:07 AM
Joined: Jun 2017
Posts: 542
DFW
JustN89 Offline
JustN89  Offline
Joined: Jun 2017
Posts: 542
DFW
IMO, I would just stick to whatever interval you're comfortable with. If you want cost savings, you can follow fenixguy's filter interval. A Fram Ultra will easily handle two 5k mile OCIs.

Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581682
11/22/17 09:16 AM
11/22/17 09:16 AM
Joined: Dec 2009
Posts: 652
Wash, DC
circuitsmith Offline
circuitsmith  Offline
Joined: Dec 2009
Posts: 652
Wash, DC
Originally Posted By: mi3grls
Purchasing a used 2008 crv EX 110k.


It's also time to check valve clearance, IMHO.


2017 Hyundai Tucson SE FWD, 5000mi/12mo OCI
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581687
11/22/17 09:19 AM
11/22/17 09:19 AM
Joined: Mar 2009
Posts: 1,597
Regina, Saskatchewan
sir1900 Offline
sir1900  Offline
Joined: Mar 2009
Posts: 1,597
Regina, Saskatchewan
I partially agree with Vlad in that the two short intervals to flush out whatever is in there is not a bad idea, seeing you do not have any history on its maintenance.

After that, use a quality synthetic and follow the oil life monitor. As you mentioned, at 108k, the engine is just "stretching its legs".

Unless you do not plan on putting many miles on your CRV, there isn't a compelling reason to disregard the OLM.


2015 Infiniti Q50
VAS 5W-30 + FRAM PH6607

2015 Nissan Murano
Mobil1 AFE 0W-20 + FRAM XG6607
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581736
11/22/17 10:44 AM
11/22/17 10:44 AM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
I have a Japanese 4-cyl engine. I change it depending on my use. If during an OcI I did mainly city but I'm going to do 5k in less than 3 months, I change it at Around 4k-5k. If I did mainly highway, Like now I just did 3k in less than 2 weeks, I change it at 7k because I mainly do it at @90mph/4.5k RPMs. I recommend 0w-40 oil on these small japanese engines


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: Honda CRV 100k too frequent synthetic change [Re: mi3grls] #4581823
11/22/17 12:36 PM
11/22/17 12:36 PM
Joined: May 2009
Posts: 12,180
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,180
N.H, U.S.A.
You are likely putting in a premium mineral oil not a synthetic if you bought the stuff Stateside. In The U.S. Fully synthetic oil is an Advertising term not a technical term and it means (near) synthetic oil-like performance.

That said I would use a premium oil like QSUD or Shell Synthetic.

That engine doesn't likely need a real synthetic.


2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Honda CRV 100k too frequent synthetic change [Re: ARCOgraphite] #4581830
11/22/17 12:43 PM
11/22/17 12:43 PM
Joined: Aug 2010
Posts: 5,648
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,648
Champlain/Hudson Valley
Is the OP's engine known to sludge up?

Good quality conventional oils are great oils but the suggestion to use 0W-40 (Mobil1 ? ) might be a good one.

It's a real PAO synthetic and might be better come the Summer heat. People here say it cleans well.

I'd love access to a fiber optic scope and look well under the valve cover.

OP: When you decide to do the plugs do a compression check.

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