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Old 09-10-2009, 02:34 PM
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Real world tests have shown that Mobil 1 can go over 15k miles before it actually starts to break down, and in fact BMW recommends going 15k between changes under ideal conditions. Not sure what oil they use, though.

Using the OLM on our cars, most people average 7-8k miles between changes, which is fine. You can probably go 10k with a filter change, but I wouldn't make a habit of it. Just make sure to check your oil level regularly - car won't always tell you when you're low until it's too late.
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Old 09-10-2009, 03:18 PM
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There's only 1 Mobil1 that might handle 15k OCI's and that is the EP stuff at $6+ per quart.

The other Mobil 1 formulations are just Group III basestocks similar to other OTC synthetics.
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Old 09-10-2009, 07:25 PM
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Originally Posted by metroplex View Post
There's only 1 Mobil1 that might handle 15k OCI's and that is the EP stuff at $6+ per quart.

The other Mobil 1 formulations are just Group III basestocks similar to other OTC synthetics.
I think the only difference between the two is the amount of additives / detergents they put in? I think those fade long before the actual oil breaks down. Don't hold me to that, though.
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Old 09-11-2009, 07:48 AM
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Originally Posted by Tomtwtwtw View Post
Real world tests have shown that Mobil 1 can go over 15k miles before it actually starts to break down, and in fact BMW recommends going 15k between changes under ideal conditions. Not sure what oil they use, though.

Using the OLM on our cars, most people average 7-8k miles between changes, which is fine. You can probably go 10k with a filter change, but I wouldn't make a habit of it. Just make sure to check your oil level regularly - car won't always tell you when you're low until it's too late.
i looked yesterday and my oil still shows full level. I have gone 5600 miles so far. My cluster shows that i have 44% oil left.
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Old 09-11-2009, 09:39 AM
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the cluster percentage is an estimated percentage of health. I wouldnt quote myself on it, but I believe that when that reaches 0% its supposed to mean its time for a change....or - its starting to break down and your oil needs to replaced, as it can no longer do its job correctly.

I change every 3000-5000 and havent let it go below 60% yet. But thats just me...i'm sure I could safely get away with much more mileage.

keep in mind, your cluster has to be reset when you change it...otherwise you could let it run down to 0%, change the oil, and it will still say 0%. the guage is just a best guess estimate at oil lifespan. I still feel better tracking mileage and doing it on my own schedule.
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Old 09-11-2009, 10:29 AM
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Originally Posted by CobaltCpe View Post
i looked yesterday and my oil still shows full level. I have gone 5600 miles so far. My cluster shows that i have 44% oil left.
I'm assuming you do a lot of highway driving? Mine gets me maybe 7k miles, but I also do lots of rush hour commutes and short trips.

Originally Posted by thisperishedmin View Post
the cluster percentage is an estimated percentage of health. I wouldnt quote myself on it, but I believe that when that reaches 0% its supposed to mean its time for a change.
You're right, it is an estimate, but it is a better much estimate than "change at xxx miles just because."

GM has also noted that the OLM is conservative because they obviously don't want people bricking their cars if they go 1 tank past 0. Also, at 5% and below, you will get a ding in the car and a warning on the DIC to change the oil soon every time you start the car. It will not let you forget.
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Old 09-11-2009, 01:11 PM
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Originally Posted by thisperishedmin View Post
the cluster percentage is an estimated percentage of health. I wouldnt quote myself on it, but I believe that when that reaches 0% its supposed to mean its time for a change....or - its starting to break down and your oil needs to replaced, as it can no longer do its job correctly.

I change every 3000-5000 and havent let it go below 60% yet. But thats just me...i'm sure I could safely get away with much more mileage.

keep in mind, your cluster has to be reset when you change it...otherwise you could let it run down to 0%, change the oil, and it will still say 0%. the guage is just a best guess estimate at oil lifespan. I still feel better tracking mileage and doing it on my own schedule.
Yeah i know how to reset my oil percentage as i am 6th oil change myself now with mobil 1. I was just curious about the percentage because mine shows over 40% left and i have gone 5600 miles. The dealership told me with mobil 1, that you can run it to 0% but regular oil you cannot.



Originally Posted by Tomtwtwtw View Post
I'm assuming you do a lot of highway driving? Mine gets me maybe 7k miles, but I also do lots of rush hour commutes and short trips.

Well i do both highway and city. I only live 5 miles from work so i take the expressway at 5am in the morning as there is no traffic. But usually on the weekends, i will drive a mile or 2 for groceries or to get beer but thats about it. How do you know when to change yours because your saying 7k and i have never gone past 5000 miles until now. Dealership told me with mobil 1 only, you can run the percentage down to 0 but not sure i would trust that low. Remember i am running 0w30 mobil 1.

Originally Posted by CobaltCpe View Post
anyone know how many miles you can go with mobil 1. I have gone 5 thousand miles and i show 24% on my computer and wondering if i should do one or wait until the percentage goes down a little more.
Ha, i see i made this post when i was running mobil 1 5w30 all city. I see i went 5000 miles and it showed 24%. This time around with mobil 1 ow30, more highway than city driving, i have gone 5600 miles and show 44% left.

Last edited by CobaltCpe; 09-11-2009 at 01:17 PM. Reason: Automerged Doublepost
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Old 09-11-2009, 04:03 PM
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If you're running Mobil1 and want to be good to the car, still change at 3k. I can change mine with Mobil1 for less than dino oil at the stealership. Therefore, I still run 3k intervals.
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Old 09-11-2009, 04:22 PM
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I havent done one on my Cobalt yet (which is running M1 0w-30), but the car I replaced with the Cobalt was a Volvo S70 T5. 5cyl, turbo motor.. manual... so spirited driving like the Cobalt. I also ran M1 0w-30 in it too.

My oil analysis over a couple years showed that on THAT particular car, 5.5-6k was about the limit on the M1 0w-30. After 6k the TBN really started to drop off like a rock. The viscosity and flashpoint stayed decent, but it had lost a good portion of its detergent.

I really should send in a sample on the Cobalt next drain. I'm going to take this to 5k and see what its looking like. The Volvo has a much larger cartidge oil filter, so I'll be curious to see how dirty the oil is.
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Old 09-18-2009, 01:33 PM
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Originally Posted by CleverOne View Post
Just changed my oil with this:
http://www.skymall.com/shopping/deta...d=102716746&c=

this thing is friken bad ass, no more jacking up the car or getting ramps, this thing sucks the oil right out through the dip stick.

I put in 6 quarts exactly and started the car up and let it run for a minute, checked the stick and its at the full level, i am going to check it again in the morning just to make sure.

Alldata says 6 quarts of oil so that is what i put in, i will update in the morning about the level. But seriously everyone should invest in this thing, its bad ass!

I also purchased a 1 1/4 socket from sears for like 7.99, worked like a champ.
i sent you pm about letting me try this out on my car and you never responded over a week ago. I wanted to really see if this works and i am located in dallas just like you. I have my oil and filter ready and also the socket. Its just very hard for me to believe that works and gets all the oil out. I just cant seem to understand how you know when its at the bottom of the pan. You definitely know when you unscrew the drain plug. To me this is a SCAM!
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Old 09-18-2009, 03:02 PM
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Originally Posted by CobaltCpe View Post
To me this is a SCAM!
Measuring the amount of oil you take out against the amount you put in is a pretty good indication of how well it works. For those willing to spend the money on it, it's a great tool.
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Old 09-24-2009, 11:51 PM
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what size ratchet for the drain bolt ??
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Old 09-25-2009, 12:35 AM
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Originally Posted by CobaltCpe View Post
i sent you pm about letting me try this out on my car and you never responded over a week ago. I wanted to really see if this works and i am located in dallas just like you. I have my oil and filter ready and also the socket. Its just very hard for me to believe that works and gets all the oil out. I just cant seem to understand how you know when its at the bottom of the pan. You definitely know when you unscrew the drain plug. To me this is a SCAM!
take a straw, stick it in a cup can you feel the bottom?
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Old 09-25-2009, 12:36 AM
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Originally Posted by bboyfreeflow View Post
what size ratchet for the drain bolt ??
Good question...I want to say 5/8". If I recall right, I use the same socket on that bolt as I do on my spark plugs. Don't hold me to that one, though...
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Old 09-25-2009, 01:00 AM
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Originally Posted by CleverOne View Post
take a straw, stick it in a cup can you feel the bottom?
And as much as you might be tempted, you probably shouldn't suck out of the straw when it's in the engine.
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Old 09-25-2009, 02:27 PM
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anyone have any trouble gettin the oil bolt out from underneath? i tried but mines like stripped i cant get it to budge....
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Old 09-25-2009, 03:02 PM
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Originally Posted by MP81 View Post
And as much as you might be tempted, you probably shouldn't suck out of the straw when it's in the engine.
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Old 09-25-2009, 07:49 PM
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15 mm is the drainplug bolt size.

Changed today with M1 0W-30, gonna see what kind of mileage it will do.
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Old 09-25-2009, 08:58 PM
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any problems getting the bolt off ??
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Old 09-26-2009, 02:09 AM
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Never had issues getting mine out, sounds like you have drain bolt drama ahead.
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Old 09-26-2009, 11:19 AM
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nope, never an issue.

used to work at the dealer too doing oil changes and never had an issue with any other balt drain bolts either.
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Old 10-06-2009, 09:17 PM
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my oil life wont reset. you say the "right" button but which one is that haha
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Old 10-06-2009, 09:26 PM
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Originally Posted by mofofernando View Post
my oil life wont reset. you say the "right" button but which one is that haha
Get in, turn the key to 'ON', but don't start it.

Press the accelerator to the floor and release. Do this 4 times in succession. 1,2,3,4 Done.

Your Oil Life Monitor will now be reset to 100%.
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Old 10-06-2009, 09:50 PM
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cool thanks
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Old 10-09-2009, 02:53 PM
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3 times also works when pushing pedal
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