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#4449683 - 07/04/17 05:56 PM 10k on conventional
passgas55 Offline


Registered: 09/26/04
Posts: 90
Loc: South La
I have a 2007 chevy classic w/t 4.3 v6 going on 195k miles. I always did 10k oil changes. My oil monitor would usually goes off at 11k miles.
I always used a syn or semi in it. I just picked up 10/30 chevron supreme conventional and plan on going 10k miles. I do not see a reason why this should not work. It uses about a quart in 10k miles. Would you?

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#4449688 - 07/04/17 06:02 PM Re: 10k on conventional [Re: passgas55]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2569
Loc: MN
You could. I wouldn't since I almost always go for full synthetics to keep the ringlands clearer.
If doing highway miles mostly, or at least 7 or more miles at a time, you'll be fine doing 10k miles or 1 year, whichever comes first, on that conventional.
Sounds like you are basically following the OLM which is a great thing to do. It will predict OK.
A "Chevy Classic"? I've heard of the Malibu Classic, yet they didn't put the 4.3L V6 in that. Is that a pickup truck?
Edit: They did have a Chevy Classic Silverado in 2007, must be it.


Edited by oil_film_movies (07/04/17 06:03 PM)

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#4449689 - 07/04/17 06:02 PM Re: 10k on conventional [Re: passgas55]
Joenpb Offline


Registered: 07/04/11
Posts: 336
Loc: San Diego, CA
If it meets your cars specification you're good to go, if not, I'd pass. Just not worth saving a few cents and possibly having increased wear.

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#4449695 - 07/04/17 06:11 PM Re: 10k on conventional [Re: passgas55]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Varnish stains is the instant visual I got after reading the thread title.

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#4449698 - 07/04/17 06:12 PM Re: 10k on conventional [Re: passgas55]
Seventh Offline


Registered: 11/11/12
Posts: 234
Loc: NorCal
Although I personally wouldn't have the courage to go that long on conventional oil without uoa, it would probably be fine.

Chevron oils are really good.

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#4449702 - 07/04/17 06:16 PM Re: 10k on conventional [Re: passgas55]
Warstud Offline


Registered: 09/02/05
Posts: 5397
Loc: MIchigan
10K on conventional. Nope. Also my 4.3L was a sludge monster.

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#4449721 - 07/04/17 06:38 PM Re: 10k on conventional [Re: passgas55]
barkingspider Offline


Registered: 12/22/13
Posts: 2049
Loc: socal
I vote to change Dino at 5k miles
_________________________
06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)

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#4449726 - 07/04/17 06:41 PM Re: 10k on conventional [Re: passgas55]
RichardS Offline


Registered: 01/14/17
Posts: 622
Loc: Melbourne, Florida
10k?! The oil minder on my work truck (a 2006 chevy 2500) doesn't even get past 3 or 4k before going off.

Lots of highway driving and no towing?
_________________________
2008 Dodge Caliber SE 2.0 117k
4qt Imeditsu 0w-20, 1/2qt Mobil SS 5w-20 Fram HM

2003 Buick Century 107k
4.5q Havoline 5w-30 HM Fram XG

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#4449734 - 07/04/17 06:47 PM Re: 10k on conventional [Re: passgas55]
Triton_330 Offline


Registered: 12/24/13
Posts: 780
Loc: Illinois, USA
Originally Posted By: passgas55
I have a 2007 chevy classic w/t 4.3 v6 going on 195k miles. I always did 10k oil changes. My oil monitor would usually goes off at 11k miles.
I always used a syn or semi in it. I just picked up 10/30 chevron supreme conventional and plan on going 10k miles. I do not see a reason why this should not work. It uses about a quart in 10k miles. Would you?


What oil filter are you planning to use? 10k on Dino is feasible (depending on the engine's notoriety of cleanliness or not) if you use a good oil filter. But I wouldn't do it with a standard tier filter. I'd recommend a synthetic oil filter, like Wix XP, Fram Ultra, STP XL, M1, RP, or Puro Boss. I definitely wouldn't run a standard AC Delco to 10k, regardless of the type of oil.
_________________________
2001 Ford F-150 XLT 4x4 5.4L V8 ~132k miles
-> PPHM 5w-20 w/Fram Ultra
1989 Chevrolet Camaro RS 5.0L TBI V8 ~48k miles
-> Milesyn SB 5w-30 w/Puro Boss

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#4449737 - 07/04/17 06:50 PM Re: 10k on conventional [Re: passgas55]
CT8 Online   content


Registered: 10/09/14
Posts: 10986
Loc: Idaho
A HDEO oil would have the bet change of a long service life.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4449738 - 07/04/17 06:52 PM Re: 10k on conventional [Re: passgas55]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1227
Loc: Oregon
If you're OK with the viscosity doubling by 10k then by all means go for it. Note that viscosity doesn't increase linearly, it increases exponentially with use... picture a relatively linear sloping line with a steep ramp up at the end.


Edited by 1JZ_E46 (07/04/17 06:55 PM)
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4449739 - 07/04/17 06:53 PM Re: 10k on conventional [Re: passgas55]
passgas55 Offline


Registered: 09/26/04
Posts: 90
Loc: South La
It is a chevy truck. I do a lot of hwy miles and I do not tow. I drive easy. I went 160k before I needed a brake job.
Any way I think the oil monitor should be cal to dino. I never knew the 4.3 was a sludge monster.

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#4449740 - 07/04/17 06:54 PM Re: 10k on conventional [Re: passgas55]
slacktide_bitog Online   content


Registered: 03/20/08
Posts: 6172
Loc: USA
The OLM assumes dino, so you can do it with no problems. However, I'd still rather use a synthetic, or at least a dexos-rated syn blend! For OLM cars, I like to use the cheapest syn on sale, which is usually Napa Synthetic (often goes on sale for $3-4/qt)

10 years ago, the current spec was SM. Any modern SN oil will be better than what was available at the time, so you will be fine no matter what, since like I said the OLM assumes SM conventional.

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#4449752 - 07/04/17 07:04 PM Re: 10k on conventional [Re: Triton_330]
passgas55 Offline


Registered: 09/26/04
Posts: 90
Loc: South La
Originally Posted By: Triton_330
Originally Posted By: passgas55
I have a 2007 chevy classic w/t 4.3 v6 going on 195k miles. I always did 10k oil changes. My oil monitor would usually goes off at 11k miles.
I always used a syn or semi in it. I just picked up 10/30 chevron supreme conventional and plan on going 10k miles. I do not see a reason why this should not work. It uses about a quart in 10k miles. Would you?


What oil filter are you planning to use? 10k on Dino is feasible (depending on the engine's notoriety of cleanliness or not) if you use a good oil filter. But I wouldn't do it with a standard tier filter. I'd recommend a synthetic oil filter, like Wix XP, Fram Ultra, STP XL, M1, RP, or Puro Boss. I definitely wouldn't run a standard AC Delco to 10k, regardless of the type of oil.


I have been using the delco filters. The 52 which is a little longer than the 47. (I think I got my numbers right) Any way I did cut one open and it look okay after 10k miles. I average about 6 months per 10k miles.

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#4449755 - 07/04/17 07:06 PM Re: 10k on conventional [Re: passgas55]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
If you used the same exact oil but used their 5w30 flavor instead you would get semi synthetic
with no extra cost. I have used PYB 5w20 for 8k runs and it did great in a 2L engine.

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