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9 months on dino oil, should I change it? #4455018
07/10/17 08:19 AM
07/10/17 08:19 AM
Joined: Jul 2017
Posts: 187
Venezuela, South America
Emanuel Offline OP
Emanuel  Offline OP

Joined: Jul 2017
Posts: 187
Venezuela, South America
Hello everyone.

I have a carbureted car, the engine is in great shape, not any leaks or oil consumption in 3k miles OCI. I did the last oil change in october 2016 (9 months ago), the car hasnīt been driven a lot, less than 2000 miles but it was parked most of the time for 5 months, I drived the car once every 3 weeks less than 5 miles (10 minutes) to prevent any damage in the engine seals for being so long without used. I am using a conventional oil.

My question is, considering the age of the oil, the fact that it hasnīt been used in the best condition (short drives) and that it is a carbureted car should I change the oil now that it only has 2k miles?

Last edited by Emanuel; 07/10/17 08:24 AM.
Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455027
07/10/17 08:28 AM
07/10/17 08:28 AM
Joined: Oct 2010
Posts: 9,529
Virginia Beach
Astro14 Offline
Astro14  Offline

Joined: Oct 2010
Posts: 9,529
Virginia Beach
I would.

A lot of very short trips like that (where the choke is on and it never warms up) and I suspect there is a lot of condensation and fuel dilution.


32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455039
07/10/17 08:41 AM
07/10/17 08:41 AM
Joined: Jul 2005
Posts: 31,674
NY
demarpaint Offline
demarpaint  Offline

Joined: Jul 2005
Posts: 31,674
NY
I'd change it, then go with a synthetic oil and change it once a year. You should be able to wait until 12 months and then change it if you wanted to.


God Bless Our Troops

Re: 9 months on dino oil, should I change it? [Re: Astro14] #4455050
07/10/17 08:51 AM
07/10/17 08:51 AM
Joined: Feb 2014
Posts: 2,777
Canada
Lolvoguy Offline
Lolvoguy  Offline

Joined: Feb 2014
Posts: 2,777
Canada
Originally Posted By: Astro14
I would.

A lot of very short trips like that (where the choke is on and it never warms up) and I suspect there is a lot of condensation and fuel dilution.

+1


06 Lexus IS350- Wife
88 BMW 325is- Mistress
Say "no" to Turbo!
Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455061
07/10/17 09:05 AM
07/10/17 09:05 AM
Joined: Dec 2003
Posts: 919
Monroe,CT
Bambam Offline
Bambam  Offline

Joined: Dec 2003
Posts: 919
Monroe,CT
Drive every three weeks for 30 minutes, get it up to temp and burn off the nastiness ! Then change your dino oil yearly.


07 DMAX CC 4x4 ~ Synthetics in the driveline, Delo XLE 15w40 in the sump.
Dirt Bikes and a Harley for the summer!
Ski-Doo for the winter.



Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455062
07/10/17 09:07 AM
07/10/17 09:07 AM
Joined: Dec 2015
Posts: 93
Pocatello, Idaho
compratio10_5 Offline
compratio10_5  Offline

Joined: Dec 2015
Posts: 93
Pocatello, Idaho
For seldom driven vehicles, I like the schedule recommended for exercising emergency generators. Run the engine, under some load, for a minimum for 30 minutes each month. This will warm the engine and oil enough to keep internal condensation to a minimum, and use enough fuel that it does not become stale. As for as changing oil, change now because of the previous short trips and in the future, once a year should be adequate if short trips are minimized. Why is synthetic oil any better than high quality mineral oil in this service? I do not see a good reason to use synthetic unless the engine is exposed to extreme temperatures, hot or cold, is equipped with a turbocharger, or used in long change intervals. Synthetic oil offers little advantage when it is changed to flush contamination.


It's not what you don't know that hurts, it's what you think you know that ain't so. Will Rogers
Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455098
07/10/17 09:41 AM
07/10/17 09:41 AM
Joined: Feb 2013
Posts: 3,117
Virginia
bigt61 Offline
bigt61  Offline

Joined: Feb 2013
Posts: 3,117
Virginia
Just change it every 3000 - don't worry about the time. And drive the car when you need to drive it - driving it to warm up oil is crazy....at least IMO...others will argue, but I have a 5 year UOA on a truck that mostly sat and it was fine.

https://bobistheoilguy.com/forums/ubbthr...M1_#Post4190879


92 Suburban 2500 7.4L 58k M1_0w40 5yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 5yr OCI
13 Dodge Dart 2.0L 30k PP 0w20 OLM OCI
70 Camaro 5.7L 59k
Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455111
07/10/17 09:54 AM
07/10/17 09:54 AM
Joined: Sep 2015
Posts: 4,113
Connecticut
69GTX Offline
69GTX  Offline

Joined: Sep 2015
Posts: 4,113
Connecticut
I know of a number of collectors who allow their cars to sit for up to 6 months per year. In one case, it was a 2000 LS1 equipped vehicle with very low mileage. With 17 cold northern winters under its belt sitting the entire time, the car never developed a seal/gasket leak. Once you start them up, you should make an attempt to drive it until fully warmup up.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: 9 months on dino oil, should I change it? [Re: Emanuel] #4455114
07/10/17 09:56 AM
07/10/17 09:56 AM
Joined: Aug 2003
Posts: 3,613
lllinois
salesrep Offline
salesrep  Offline

Joined: Aug 2003
Posts: 3,613
lllinois
In your circumstance. Use a high quality oil,,, change once a year. Good to go.


High quality Specialized Lubricants pay for themselves!
Re: 9 months on dino oil, should I change it? [Re: Bambam] #4455175
07/10/17 10:55 AM
07/10/17 10:55 AM
Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline

Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
Originally Posted By: Bambam
Drive every three weeks for 30 minutes, get it up to temp and burn off the nastiness ! Then change your dino oil yearly.


+1 smile

And that's still overkill. I had my last truck that only got worked now and then go 5 years on the oil. Carb and all on conventional oil (Chevron Supreme). It was fine. Gone over 5,000 miles and decided to change it as it was finally getting a bit dark ...

Last edited by BrocLuno; 07/10/17 10:58 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: 9 months on dino oil, should I change it? [Re: Emanuel] #4455225
07/10/17 12:07 PM
07/10/17 12:07 PM
Joined: May 2016
Posts: 725
Canada
i_hate_autofraud Offline
i_hate_autofraud  Offline

Joined: May 2016
Posts: 725
Canada


I'd change the oil if it's obvious water / coolant contamination in the oil.

However, I've had a sunday driver sit in the garage for 9 years with 5,000 miles on the oil,
when I changed it I sent a sample out, the UOA showed the oil was still good! Oil TBN of 3.6!

Dino oil is already millions of years old coming out of the ground, 1-2 yrs in an engine is no
problem. The bigger problem is owners who don't check oil level and add as needed and fry a motor through a lack of oil!
Oil companies and retailers have been scaring us into unnecessary oil changes for decades!

I've been slowly extending my oil change intervals, each UOA still showed the oil as OK!
I'm using a pare of FilterMags and extra bar magnets on the spin-on filter to pick up wear metals
that actually turn the oil black then 'soot' does in a lean burning engines (late model car).

On my last OCI, oil was just barely dark at 8,000 miles and 10 months!

Vintage cars from the 60's 70's see lots of blow-by and soot production and semi-poor crankcase
ventilation where short OCIs are more appropriate.

Re: 9 months on dino oil, should I change it? [Re: BrocLuno] #4455270
07/10/17 12:52 PM
07/10/17 12:52 PM
Joined: Jun 2005
Posts: 3,523
Massachusetts
deven Offline
deven  Offline

Joined: Jun 2005
Posts: 3,523
Massachusetts
Originally Posted By: BrocLuno
Originally Posted By: Bambam
Drive every three weeks for 30 minutes, get it up to temp and burn off the nastiness ! Then change your dino oil yearly.


+1 smile

And that's still overkill. I had my last truck that only got worked now and then go 5 years on the oil. Carb and all on conventional oil (Chevron Supreme). It was fine. Gone over 5,000 miles and decided to change it as it was finally getting a bit dark ...


+2 smile


Proud user of ROYAL PURPLE products!

2016 Acura RLX Sports Hybrid(Royal Purple HPS 5w30 + M1-110 oil filter)

KEEP IT SIMPLE STUPID. IT'S ONLY OIL
Re: 9 months on dino oil, should I change it? [Re: i_hate_autofraud] #4455778
07/10/17 10:41 PM
07/10/17 10:41 PM
Joined: Sep 2015
Posts: 2,559
Malaysia
zeng Offline
zeng  Offline

Joined: Sep 2015
Posts: 2,559
Malaysia
Originally Posted By: i_hate_autofraud

Oil companies and retailers have been scaring us into unnecessary oil changes for decades!

How true ..... blush

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