Author Topic: How advanced is the DIC for engine oil life? (Read 11912 times)

Lucy'sDaddy · « **Reply #25 on:** March 01, 2009, 09:36:36 PM »

I agree on the Quaker State dino oil, but this Q Horsepower is stated to be for turbo and S/C applications, AND it is on GM's approved full synthetic list as GM4718M approved. I just changed it in my '04 Monte Intimidator SS yesterday after 5,000 miles, and it came out dark, but not black. Inside the oil fill tube was spotless, and no sign of moisture gathering. I believe it's every bit as good as basic Mobil 1 oil, until someone's tests can prove otherwise, and GM says it OK. On the other hand, that is a 3.8L S/C car, and not a turbo car. Still not convinced on what to put in Lucy. Still leaning towards RP XPR from NAPA for $14+ per qt for the turbo.

Sly Bob · « **Reply #26 on:** March 01, 2009, 10:00:13 PM »

I was just cruising around on YouTube and found this video about oil change intervals.

http://www.youtube.com/watch?v=seCWUyKEoyw

lil goat · « **Reply #27 on:** March 02, 2009, 01:50:11 AM »

Quote from: Lucy'sDaddy on March 01, 2009, 09:36:36 PM

I agree on the Quaker State dino oil, but this Q Horsepower is stated to be for turbo and S/C applications, AND it is on GM's approved full synthetic list as GM4718M approved. I just changed it in my '04 Monte Intimidator SS yesterday after 5,000 miles, and it came out dark, but not black. Inside the oil fill tube was spotless, and no sign of moisture gathering. I believe it's every bit as good as basic Mobil 1 oil, until someone's tests can prove otherwise, and GM says it OK. On the other hand, that is a 3.8L S/C car, and not a turbo car. Still not convinced on what to put in Lucy. Still leaning towards RP XPR from NAPA for $14+ per qt for the turbo.

I just switched to the RP XPR, I hope someone else trys it soon, I did notice a difference would love to see if someone else notices the same thing I did.

baconbits · « **Reply #28 on:** March 02, 2009, 02:22:56 AM »

With the amount of miles we put on our car every year..its a fair weather driven,6 month heated garage stored driver ..I'm guessing the next oil change will be some time in 2112..

Bacon

Cheers · « **Reply #29 on:** March 02, 2009, 03:14:26 AM »

Quote from: baconbits on March 02, 2009, 02:22:56 AM

With the amount of miles we put on our car every year..its a fair weather driven,6 month heated garage stored driver ..I'm guessing the next oil change will be some time in 2112..
Bacon

GOOD TO HEAR Since my car parts budget is already in FY 2020

Critterman · « **Reply #30 on:** March 02, 2009, 11:35:05 AM »

Quote from: baconbits on March 02, 2009, 02:22:56 AM

With the amount of miles we put on our car every year..its a fair weather driven,6 month heated garage stored driver ..I'm guessing the next oil change will be some time in 2112..
Bacon

Bacon,
They do recommend yearly changes regardless of the milage

car guy · « **Reply #31 on:** March 03, 2009, 10:38:50 PM »

guys, you do realise that modern dertergent type (multi weight oil) will not coke up any more than synthetic.
if yer gonna run the piss out of your synthetic oil, why not just get regular oil and change it every 3k. your still saving money and will lubricate everything just as well as synthetic oil with 10k miles on it.

most synthetic oils are mineral oil based. its a far superior lubricant over hydrocarbon based oils. it will actualy form a bond with the metal and keep it lubricated under extreme conditions. when you switch to a non syn oil, the mineral oil bond is ruined and can not be reformed. im not sure about "blend" type oils and their effects as those werent around when i was in school. mineral oil has been around as a lubricant for a very long time. it was used in ww2 figther planes.

lil goat · « **Reply #32 on:** March 04, 2009, 08:18:35 AM »

Run synthetic in an air cooled Harley, it will run 20 degrees cooler, that is more than enough evidence for me. There is also the issue that running non syn oil will void your warranty, and any synthetic oil marked 100% synthetic has to be just that according to the API or it can't say 100% synthetic. Yes synthetic oil can be up to 69% the highest grade of mineral oil. Then there is the green issue of wasting oil by changing it every 3000 miles.

JRinKY · « **Reply #33 on:** March 04, 2009, 03:00:54 PM »

Quote

Then there is the green issue of wasting oil by changing it every 3000 miles.

What about those who change their synthetic every 3000 miles ?

KWhale · « **Reply #34 on:** March 04, 2009, 06:48:00 PM »

Quote from: JRinKY on March 04, 2009, 03:00:54 PM

What about those who change their synthetic every 3000 miles ?

Those people just cannot be reasoned with!

Sol Asylum · « **Reply #35 on:** March 04, 2009, 07:32:55 PM »

Quote from: KWhale on March 04, 2009, 06:48:00 PM

Those people just cannot be reasoned with!

I'll second that

lil goat · « **Reply #36 on:** March 04, 2009, 07:57:21 PM »

I can only hope they use a green shop like I do, when they do and oil change the waste oil goes into a heater that burns the oil to heat the garage, the oil burner even has a catalytic converter on the exhaust. Changing oil ever 3000 miles is an old myth even with mineral oil, it was created by an ad agency to sell more oil. Royal Purple recommends every 12,000 miles even Mobil 1 says you can go to 12,000 miles.

tailhooker · « **Reply #37 on:** March 05, 2009, 11:40:21 PM »

I'll admit that I am still trying to shake the "every 3,000 miles" routine. But I got 237,000 miles out of my beloved '85 Toyota Van , and would still have it today if the damn rear tailgate door hadn't rusted through and fallen onto the road when I hit a bump.

My first foray into synthetics was with my '87 Buick Turbo Regal. A noticeable difference there. (12.99 quarter mile)

Now , I am at 60% on the DIC with my '07 GXP. I switched from Mobil 1 to Pennzoil Platinum , only because I've used Pennzoil in all my cars.

Now, call me crazy, but the top mounted oil filter on the Solstice makes it very easy to change the filter only. So, all of you who have swimming pools (above or in-ground)....
you always change (or backwash) the FILTER at regular intervals , don't you ? You don't drain and refill the entire pool. Why not change the FILTER at 50% DIC..........if only to assuage your conscience ? The Pontiac engineers have given us anal retentives a way to easily change the filter without spilling a ton of oil. Then at "change oil" time on the DIC, you drain the oil , and replace both the oil and filter. That's cheap insurance in my book.

By the way, since using Pennzoil Platinum , my engine temperatures have been consistantly 5 degrees cooler. That's from using Mobil 1. I have nothing against Mobil 1 . It's just that since I was able to drive and had my own car, I always used Pennzoil. Actually , I'd switch to Royal Purple in a heartbeat if I could find it regularly available, even if it were way more expensive than Pennzoil or Mobil 1. Just my two cents.

Thanks,
Todd Schrack aka Tailhooker

Critterman · « **Reply #38 on:** March 06, 2009, 11:30:29 AM »

Tailhooker,
That's exactly what I do, I change the filter at 60%, then oil and filter at 20%, I leave a little insurance at the end.

LilGoat - I dump the oil in the storm drain that is marked "tributary of the Chesapeake Bay". I figure all that salt water will break it down.

and yes folks I am joking

tazz · « **Reply #39 on:** March 06, 2009, 12:27:36 PM »

That's very similar to what I used to do when I ran the Amsoil or RP in my other vehicle. I would sometimes go 6-7K between changes and change the filter at 3-3500.
BTW I any of you guys go to Wal Mart you can recycle your used oil at there auto center. Even most Service stations or even some auto parts stores.

car guy · « **Reply #40 on:** March 07, 2009, 02:56:40 PM »

all auto shops are required to take your used oil, at least here in illinois, it is law.
all used oil is recycled.

listening to a guy ranting about myths created by add agencies talk about being green and environmentaly friendly is kind of the definiton of irony, dont you think?

HAMMER DOWN · « **Reply #41 on:** March 07, 2009, 03:50:37 PM »

In my 05 Legacy GT & my G\F's 05 WRX OCI is on avg. 12k. My OA's come back still fit for use. My 07 Solstice GXP, I change when my DIC tells me to. Last oil change was at 19100 miles, avg. OCI is 9.5k.

I use Amsoil 0w-30 Signature Series & filters in my Subaru's & Amsiol & AC delco filter in the GXP. Amsoil not make a drop in filter for the Sol-GXP, but do offer a WIX filter.

05 GT 111K+ miles
05 WRX 85K+ miles
07 Sol-GXP 26K + miles

Mike

car guy · « **Reply #42 on:** March 21, 2009, 10:47:11 PM »

you do know that the oil life monitor doesnt monitor the oil. its a computer algorythm that infers oil life based on engine revolutions and load patterns.

what if its wrong?
is your $30k solstice worth the belief that synthetic oil can last 15k miles?

tazz · « **Reply #43 on:** March 22, 2009, 12:38:01 AM »

Quote from: car guy on March 21, 2009, 10:47:11 PM

you do know that the oil life monitor doesn't monitor the oil. its a computer algorithm that infers oil life based on engine revolutions and load patterns.

what if its wrong?
is your $30k solstice worth the belief that synthetic oil can last 15k miles?

Ive actually tested synthetic oil in a personal vehicle of mine about 8yrs ago. Tested it at 5,8,12,15K and it was still in great shape but I was also using RP at the time @ changed my filter every 3K.
So to answer your ? yes I trust that synthetic oil will last 15K+ if it's a good quality syn oil like Redline, Royal Purple, Amsoil, Mobil1 and or Castrol.
In fact On a 99Ford F-150 5.4L I have also I run Mobil1 10W30 and haven't changed the oil in 2 yrs @20K+ but I also run a dual bypass filtration system that purifies the oil from submicron contaminates & water.

HAMMER DOWN · « **Reply #44 on:** March 22, 2009, 04:26:33 AM »

Quote from: car guy on March 21, 2009, 10:47:11 PM

you do know that the oil life monitor doesnt monitor the oil. its a computer algorythm that infers oil life based on engine revolutions and load patterns.

what if its wrong?
is your $30k solstice worth the belief that synthetic oil can last 15k miles?

Yes, because my OA's come back, ok & fit for continuous use at 15k on my Subaru's.

Mike

G8TR · « **Reply #45 on:** April 03, 2009, 03:56:44 PM »

I had mine tested and when I start having to pay for the oil change I may go out a bit further. However, right now, while they have to do it at no cost to me it is every 5000 miles.

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Author Topic: How advanced is the DIC for engine oil life? (Read 11912 times)

lil goat

lil goat

lil goat