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Oil change TIME interval question #4532635
10/03/17 05:47 AM
10/03/17 05:47 AM
Joined: Oct 2017
Posts: 2
Illinois
milosz Offline OP
milosz  Offline OP
Joined: Oct 2017
Posts: 2
Illinois
I have a 2013 Infiniti G37x with 41,000 miles on it, bought it recently. I just had an oil change with Valvoline SynPower synthetic. My car is kept in a garage.

I do not drive very much, maybe 3,000 miles a year It's 80% stop-and-go city driving, trips of 15 to 30 minutes. So a ~7,000 mile oil change interval would be over two years. I I think that that would be too long, all the anti-corrosion and acid-neutralizing additives would be used up, though the oil's lubricating properties might still be OK.

MY QUESTIONS:
1. How long a TIME interval is appropriate? 6 months? 9? 12? I don't want to cheap out, but I don't want overkill either....
2. Do synthetic oils have more anti-corrosion additives than dinosaur oil?

Re: Oil change TIME interval question [Re: milosz] #4532649
10/03/17 06:02 AM
10/03/17 06:02 AM
Joined: May 2013
Posts: 139
Monroe, WA
KevinP Offline
KevinP  Offline
Joined: May 2013
Posts: 139
Monroe, WA
1. 12-months

2. Maybe... you are buying good oil the rest you take on faith because they don't share their additive package details.

Re: Oil change TIME interval question [Re: milosz] #4532656
10/03/17 06:20 AM
10/03/17 06:20 AM
Joined: Mar 2011
Posts: 2,198
Indiana
Indydriver Offline
Indydriver  Offline
Joined: Mar 2011
Posts: 2,198
Indiana
Everyone I've ever seen says one year max but it isn't going to seize up if you go 18 months. The annual oil change ritual gives you flexibility on when to do it. If you store the car over winter, do it right before you put it up.


2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 79,000 M1
2007 Tahoe 140,000 PP

Re: Oil change TIME interval question [Re: milosz] #4532697
10/03/17 07:09 AM
10/03/17 07:09 AM
Joined: Mar 2008
Posts: 6,141
Michigan
ZZman Offline
ZZman  Offline
Joined: Mar 2008
Posts: 6,141
Michigan
I always see 12 months or x amount of miles


2003 Mercury Grand Marquis. PP HM 5w-30 and Fram Ultra
2008 Sebring Hardtop convertible. PP HM 5w-30 and Fram Ultra
2006 Kawasaki Vulcan 900 LT. Motul 7100 10w-40 and K&N
Re: Oil change TIME interval question [Re: milosz] #4532755
10/03/17 07:54 AM
10/03/17 07:54 AM
Joined: Dec 2016
Posts: 7,199
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,199
Waco, TX
Originally Posted By: milosz
oil change interval would be over two years. I think that that would be too long, all the anti-corrosion and acid-neutralizing additives would be used up, though the oil's lubricating properties might still be OK.


You think incorrectly.

There is no harm in going two years on an oil change AS LONG AS when you do start the car, let it warm up and drive it a while.

Time = does not hurt oil
Short, cold trips = kills oil


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Oil change TIME interval question [Re: milosz] #4532759
10/03/17 07:56 AM
10/03/17 07:56 AM
Joined: Dec 2016
Posts: 7,199
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,199
Waco, TX
I have a number of infrequently used equipment, over 25 engines on my ranch.

My tree branch chipper (4-cyl Ford industrial engine) gets used an hour a year. Same oil for over 10 years, & it's still clean. I'm not going to change it unless it needs it.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Oil change TIME interval question [Re: milosz] #4532770
10/03/17 08:05 AM
10/03/17 08:05 AM
Joined: Dec 2013
Posts: 2,098
socal
barkingspider Online content
barkingspider  Online Content
Joined: Dec 2013
Posts: 2,098
socal
I would change syn oil every 2 years in ur situation. If u want to change it yearly, use cheap dino oil


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: Oil change TIME interval question [Re: milosz] #4532775
10/03/17 08:09 AM
10/03/17 08:09 AM
Joined: Apr 2005
Posts: 606
NE Ohio
knerml Online content
knerml  Online Content
Joined: Apr 2005
Posts: 606
NE Ohio
It depends on how you drive the car.

If the engine does not get warmed up properly when run, there can be water and other contaminates building up in the oil.

Also, PCV can clog.

12 months max.

Also, be sure to flush brake fluid every 2 years. Brake fluid is hydroscopic, so absords water.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W30 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: Oil change TIME interval question [Re: milosz] #4532781
10/03/17 08:10 AM
10/03/17 08:10 AM
Joined: Apr 2005
Posts: 606
NE Ohio
knerml Online content
knerml  Online Content
Joined: Apr 2005
Posts: 606
NE Ohio
It depends on how you drive the car.

If the engine does not get warmed up properly when run, there can be water and other contaminates building up in the oil.

Also, PCV can clog.

12 months max.

Also, be sure to flush brake fluid every 2 years. Brake fluid is hydroscopic, so absords water.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W30 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: Oil change TIME interval question [Re: milosz] #4532867
10/03/17 09:25 AM
10/03/17 09:25 AM
Joined: Sep 2004
Posts: 21,940
Orlando, FL
Mr Nice Offline
Mr Nice  Offline
Joined: Sep 2004
Posts: 21,940
Orlando, FL
My 83 year old dad drive 2500 miles a year, I do a drain and refill yearly.

Re: Oil change TIME interval question [Re: barkingspider] #4532873
10/03/17 09:31 AM
10/03/17 09:31 AM
Joined: Jul 2013
Posts: 2,286
Outer Banks, NC
NormanBuntz Offline
NormanBuntz  Offline
Joined: Jul 2013
Posts: 2,286
Outer Banks, NC
Originally Posted By: barkingspider
I would change syn oil every 2 years in ur situation. If u want to change it yearly, use cheap dino oil


This, except not "cheap" dino oil on a one year OCI. Use quality oil. Also if you stick with full synthetic, do yourself a favor and use a Fram Ultra for two years with your low mileage. My M35 (similar motor) has run great since new with a synthetic blend.


2017 Honda Odyssey SE, 17K
2013 Honda Accord LX, 58K
2007 Honda Ridgeline RTS, 89K
2007 Infiniti M35, 107K
Re: Oil change TIME interval question [Re: milosz] #4532897
10/03/17 09:52 AM
10/03/17 09:52 AM
Joined: Sep 2015
Posts: 6,090
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,090
Kalifornia Kollective
Like Linctex, but with somewhat less equipment, I let it go until an actual reason to change. I'd run the oil a year and do a UOA. We're all shooting in the dark with a guess ...

Oil stayed in the ground for a few 100,000,000 years. It does not go bad in a year or two. The add pak depletes based on chemistry, not time. Fuel dilution, combustion by-products, etc. That is factored into the usual mileage figure. Look for severe use mileage recommendation and change by that if you do not want to do a UOA ...

It may well be fine for many years with annual UOA. We have a member here with 62,000 miles and many years on his original fill (with by-pass filtration & top-ups). He's running AmsOil, but any really good synthetic should do about the same.

Your oil is prolly good to at least 12,000 miles in mixed use. The big deal is to make sure the motor comes up to op temp and stays there for a while. A 30 minute drive should do it nicely, and you do that, so you are doing OK smile

Last edited by BrocLuno; 10/03/17 09:52 AM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Oil change TIME interval question [Re: NormanBuntz] #4532984
10/03/17 11:48 AM
10/03/17 11:48 AM
Joined: Dec 2016
Posts: 7,199
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,199
Waco, TX
Originally Posted By: NormanBuntz

This, except not "cheap" dino oil on a one year OCI. Use quality oil.


Please explain further.

Super Tech and Harvest King are some of the "cheapest" oils you can purchase....
...........................but lack NOTHING in "quality".

If you stay with current API certified oils,
you CAN NOT buy "low quality" oil anymore..


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Oil change TIME interval question [Re: milosz] #4532991
10/03/17 12:03 PM
10/03/17 12:03 PM
Joined: May 2012
Posts: 953
Rio Rancho, NM
Pajero Offline
Pajero  Offline
Joined: May 2012
Posts: 953
Rio Rancho, NM
My last oil change interval was three years. Using PUP 5w30 with Amsoil EAO filter. I wouldn't run dino more than a year, but with synthetics it's different. Again, short trips are not good compared to long trips 20 minutes>. Good luck!


Respectfully,

Pajero!


Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot
Re: Oil change TIME interval question [Re: Linctex] #4532994
10/03/17 12:09 PM
10/03/17 12:09 PM
Joined: Dec 2009
Posts: 762
Battle Creek, MI
SVTCobra Offline
SVTCobra  Offline
Joined: Dec 2009
Posts: 762
Battle Creek, MI
Originally Posted By: Linctex
Originally Posted By: NormanBuntz

This, except not "cheap" dino oil on a one year OCI. Use quality oil.


Please explain further.

Super Tech and Harvest King are some of the "cheapest" oils you can purchase....
...........................but lack NOTHING in "quality".

If you stay with current API certified oils,
you CAN NOT buy "low quality" oil anymore..



Its an uphill battle on this forum Linctex to dispel the myth of time hurts oil. I've posted 12k mile UOAs that took 20 months with filters cut apart, I've seen an UOA of 20 yr old oil from a tractor crankcase look good, but still the myth persists that its a certain deadline to change oil or catastrophic damage will occur.


Think twice, speak once.
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