oil life monitoring system

[fishingstar]

I have a 2011 Acadia and I was wondering how accrete they are. The manual sad that it runs on condition of oil not miles. I run mobile 1 and around 4000 miles it tells me I need to change the oil. I have been using this oil for 20 years and change oil around 10000 miles. I should add all the miles are highway miles.

[Macgyver55]

Although you are probably fine going further with highway miles, If there is any remaining warranty involved, using synthetic does not give you the option of extending your intervals. Variable valve timing on todays engines places more demands on engine oil and can be very sensitive to extended intervals so stretching it out is not really in your best interest.

I personally use the oil monitor system on my vehicles and end up at 4000 to 4500 miles per change.

[harvey lee]

I run my truck motor through 2 moniter cycles before I change it. I have no idea how many miles that is but my oil never looks that bad. Synthetic only for me for the past 35 years.

[panhead]

Harvey I have a few questions,have you kept any vehicle that you followed this procedure long enough that any negative effects would have showed up and second how long of a time frame might there be between your changing the . I ask because of low mi. I put on I follow the time frame mentioned in the owners manual of not going over 12 months between oil changes. I also use full synthetic. Thanks

[Scott K]

If you have a newer VCT(Variable Valve Timing) engine, I would follow the owners manual, or even before what the manual says. If your engine isnt a VCT engine, then the longer intervals shouldnt effect to much.

[jentz]

I recently "in the last two months" read of the properties of modern day oils and that artical said todays oils have twice the life of the 90s oils.They had change reccomendations for different driving habits.I wont get into it I may be mistaken?? You may try to google.

[harvey lee]

Harvey I have a few questions,have you kept any vehicle that you followed this procedure long enough that any negative effects would have showed up and second how long of a time frame might there be between your changing the . I ask because of low mi. I put on I follow the time frame mentioned in the owners manual of not going over 12 months between oil changes. I also use full synthetic. Thanks

I have a 2008 Chev P/U. I have owned it since 38,000 miles and it now has 209,000 on it and uses zero oil between changes, well, maybe uses a half quart to be truthful.

I change it about every 3-4 months. How many miles between, maybe 11-13,000.

I use Mobil 1 oil in this truck and have used Mobil 1 in my last 3-4 vechiles and I have run them all up to approx 200,00 or a tad more. Had a 1979 T Bird I took to almost 250,000 miles chnaging about every 10,000 miles. That car as far as I know ran for another 3 years until that guy sold it to another.

I have also done the same type oil changes on a 2003 PT cruiser and that now has 189,000 miles on it and uses approx a pt of oil between changes.

Most all of our vechiles get to or darn close to 200,000 and I have yet to have a engine issue internally except for 1. Highest mileage was a 1984 Suburban we took to 274,000 miles but that one broke a crank.

With all that said, most of our miles are hwy miles and not short trip miles.

If you have an engine like Scott stated, then I would do as he suggested. We have not owned one of those motors so I cannot speak for those.

[Scott K]

I recently "in the last two months" read of the properties of modern day oils and that artical said todays oils have twice the life of the 90s oils.They had change reccomendations for different driving habits.I wont get into it I may be mistaken?? You may try to google.

You can also try searching Google for problems with VCT engines, being sludged up, and having to replace the engines at about 50,000 miles or less, because of not changing oil when recommended.

[Whoaru99]

Harvey I have a few questions,have you kept any vehicle that you followed this procedure long enough that any negative effects would have showed up and second how long of a time frame might there be between your changing the . I ask because of low mi. I put on I follow the time frame mentioned in the owners manual of not going over 12 months between oil changes. I also use full synthetic. Thanks

I can roughly parallel Harvey's experience. I have a 94 Chev K1500 that I've been driving since new. It's been run on synthetic, primarily Amsoil, since 500 miles. On the Amsoil I ran as high as 20K miles between changes but mainly 10-15k, with the filter roughly every 5k being as tiny as it is on the 4x4 trucks. The truck now has 220k(? - don't drive it unless I need to these days) but still runs like a top and uses no oil to speak of (the same as Harvey's). It has had synthetic transmission fluid in the tranny and transfer case and synthetic gear oil in the front and rear diffs too since very low miles. Too bad the rust is getting it. The engine oil now gets changed once per year since I hardly drive it.

As far as the original question, when I had dino oil in my newer Impala I went by the oil life monitor and ended up in that same 4000-4500 range mentioned earlier. Last change I did myself using Mobil 1 Extended Service oil and plan to leave it two cycles, or about 9000 miles.