Good Morning All,
First off a bit of background:
I have a 2008 Pontiac G8 GT (#880 of the first 888), its a 6.0L V8 that is fitted with AFM/DOD. The car has 93K on the clock and I first got the car at 82K. I recently had a sticky valve/lifter (not completely sure as I am more of a computer guy than a gear head) on a compression check I was getting practically 0 psi. Anyway, I decided to go with a DOD/AFM delete with requires a new cam. I took it to a local guy who does work on LS motors and has a G8 himself. As he got the valve covers off he asked me what oil I had used previously then sent me a couple pictures, they were stained pretty bad with a reddish residue. When he got to the front cover he sent me another cover, again stained with reddish residue.
After some reading on this site, I have come to the assumption that the reddish stain is varnish (best guess). However, I haven't seen anything quite like mine in any other pictures.
I am here for some advice and hopefully some edumacation.
First things first, here are the pictures:
Next, what would be your advice in going forward? Once I get the car back from the guy I will be running brand new synthetic oil (mobil 1) and probably change it halfway through the OCI(possibly use some risoline or kreen near the tail end). I am open to suggestions.
Lastly, what do the different colors of varnish say as to whats going on inside the engine? Most of the varnish pictures I am seeing are more yellowish/orangeish hues, could this just be due to the previous owner completely neglecting the engine or OCI's?
Is this even varnish, or did the previous owner possibly use some dye to check for a leak/ try to clean something with a red colored cleaner?
Follow Up Information:
Since I have had the vehicle, my drives to work (5 days a week) have been on average 10 miles and take roughly 15-20 minutes (from engine start to ignition off). On the weekends I don't drive my car very often so it will usually sit. I will allow at least 20 minutes for the engine to warm up on longer drives before driving more 'spirited'. That being said, I typically will not beat on the car and I would describe my driving as mild, not slow but not fast either.
Thanks for the listen,
Brett
First off a bit of background:
I have a 2008 Pontiac G8 GT (#880 of the first 888), its a 6.0L V8 that is fitted with AFM/DOD. The car has 93K on the clock and I first got the car at 82K. I recently had a sticky valve/lifter (not completely sure as I am more of a computer guy than a gear head) on a compression check I was getting practically 0 psi. Anyway, I decided to go with a DOD/AFM delete with requires a new cam. I took it to a local guy who does work on LS motors and has a G8 himself. As he got the valve covers off he asked me what oil I had used previously then sent me a couple pictures, they were stained pretty bad with a reddish residue. When he got to the front cover he sent me another cover, again stained with reddish residue.
After some reading on this site, I have come to the assumption that the reddish stain is varnish (best guess). However, I haven't seen anything quite like mine in any other pictures.
I am here for some advice and hopefully some edumacation.
First things first, here are the pictures:
Next, what would be your advice in going forward? Once I get the car back from the guy I will be running brand new synthetic oil (mobil 1) and probably change it halfway through the OCI(possibly use some risoline or kreen near the tail end). I am open to suggestions.
Lastly, what do the different colors of varnish say as to whats going on inside the engine? Most of the varnish pictures I am seeing are more yellowish/orangeish hues, could this just be due to the previous owner completely neglecting the engine or OCI's?
Is this even varnish, or did the previous owner possibly use some dye to check for a leak/ try to clean something with a red colored cleaner?
Follow Up Information:
Since I have had the vehicle, my drives to work (5 days a week) have been on average 10 miles and take roughly 15-20 minutes (from engine start to ignition off). On the weekends I don't drive my car very often so it will usually sit. I will allow at least 20 minutes for the engine to warm up on longer drives before driving more 'spirited'. That being said, I typically will not beat on the car and I would describe my driving as mild, not slow but not fast either.
Thanks for the listen,
Brett
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