Hey everyone, I've been a lurker since 2012, but haven't ever needed to post before now. I'm posting because I have some questions regarding the latest and greatest in oil tech that some of the more dated posts can't answer.
I bought my truck new (2005 GMC canyon, 3.5 i5) and only recently started losing oil. I used m1 5w30 since 10k miles and swapped to m1 ep 5w30 around 200k miles in 2012.
I noticed the oil burn about a month ago when I got a low oil light while branding hard, which never happens and I wasn't at my usual OCI yet. No smoke of any kind out of the tailpipe when I get on it, but I do have some pretty nasty black carbon on the outside of the exhaust port now, right around the exit which is new.
So I just ran a tank of 91 ethanol free with a dose of gumout tune up in the crankcase and used it on the head via the TB vacuum port just like seafoaming, ran it for about 80 miles and dumped the oil and put in maxlife blend 5w30 with a treatment of liqui moly oil saver (after seeing the posts here, I figure it can't hurt)
I plan to dump it at 2500 and do the same thing a second time.
Once that is complete, depending on the results, I think it may be time to go to a thicker oil to reduce whatever consumption may be left.
It's a toss up for me as far as maxlife or m1, and if maxlife, do I go full syn or blend? I've always run full syn to date, but I get the feeling that there may be a better fit for my truck than the m1 5w30 at this point.
So... my choices are m1 10w30 ep, m1 10w40 ep, maxlife blend 5w30, maxlife blend 10w30, maxlife blend 10w40, maxlife full syn 5w30, 10w30 or 10w40.
Clearly the m1 5w30 ep is out after this last performance, and it's done it's job well as the truck has aged.
I'm looking for opinions and info supporting which one is the better choice, based on 2017 versions of these.... unfortunately bitog has been around so long that Google has a hard time finding recent info in a search.
I do plan on running a dose of mos2 in whichever oil I choose, and really don't like the idea of going back to a 3k OCI while using the blend...but it's more about engine life and stopping the leak/burn/whatever. No puddles or oil spots in my driveway, in just had it sealed and it would show in a heartbeat if it was an active leak...
Help?
I bought my truck new (2005 GMC canyon, 3.5 i5) and only recently started losing oil. I used m1 5w30 since 10k miles and swapped to m1 ep 5w30 around 200k miles in 2012.
I noticed the oil burn about a month ago when I got a low oil light while branding hard, which never happens and I wasn't at my usual OCI yet. No smoke of any kind out of the tailpipe when I get on it, but I do have some pretty nasty black carbon on the outside of the exhaust port now, right around the exit which is new.
So I just ran a tank of 91 ethanol free with a dose of gumout tune up in the crankcase and used it on the head via the TB vacuum port just like seafoaming, ran it for about 80 miles and dumped the oil and put in maxlife blend 5w30 with a treatment of liqui moly oil saver (after seeing the posts here, I figure it can't hurt)
I plan to dump it at 2500 and do the same thing a second time.
Once that is complete, depending on the results, I think it may be time to go to a thicker oil to reduce whatever consumption may be left.
It's a toss up for me as far as maxlife or m1, and if maxlife, do I go full syn or blend? I've always run full syn to date, but I get the feeling that there may be a better fit for my truck than the m1 5w30 at this point.
So... my choices are m1 10w30 ep, m1 10w40 ep, maxlife blend 5w30, maxlife blend 10w30, maxlife blend 10w40, maxlife full syn 5w30, 10w30 or 10w40.
Clearly the m1 5w30 ep is out after this last performance, and it's done it's job well as the truck has aged.
I'm looking for opinions and info supporting which one is the better choice, based on 2017 versions of these.... unfortunately bitog has been around so long that Google has a hard time finding recent info in a search.
I do plan on running a dose of mos2 in whichever oil I choose, and really don't like the idea of going back to a 3k OCI while using the blend...but it's more about engine life and stopping the leak/burn/whatever. No puddles or oil spots in my driveway, in just had it sealed and it would show in a heartbeat if it was an active leak...
Help?
