Metal particles in engine oil
#1
Metal particles in engine oil
While doing an oil change today I found some oil shavings stuck on the filler plug magnet. I know some metal fuzz is normal but this is more than I've ever seen before. Besides the obligatory LS1 piston slap, there's no noise coming from the motor. Oil pressure is very healthy too: 40 PSI at idle and 60ish going down the road. 84000 miles on the clock.
Now the question is, do I go ahead with the 0w40 Mobil one I was going to use or should I use a heavier grade like 20w50 or 15w50 since these shavings could've come from the bearings?
Now the question is, do I go ahead with the 0w40 Mobil one I was going to use or should I use a heavier grade like 20w50 or 15w50 since these shavings could've come from the bearings?
Last edited by Jeep_junkie; 03-15-2017 at 12:11 AM. Reason: Added mileage
#7
If anecdotal evidence is anything to go by, using 0w30 Mobil one in my 200k mile LT1 made idle oil pressure drop to 7-8 PSI. Went to 10w40 and it helped out quite a bit.
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#9
Again, I'm not an oil expert, but I chose the 0w40 Mobil one based on UOA results at BITOG, especially since Mobil one 5w30 and 10w30 are notorious for thinning out at operating temp. Probably a lot thinner than the dino 5w30 you're using. You might also notice that manufacturers also recommend a heavier grade oil for track duty. Not that we're always driving full throttle, but our cars certainly get flogged regularly.
#11
Pontiacerator
iTrader: (12)
Again, I'm not an oil expert, but I chose the 0w40 Mobil one based on UOA results at BITOG, especially since Mobil one 5w30 and 10w30 are notorious for thinning out at operating temp. Probably a lot thinner than the dino 5w30 you're using. You might also notice that manufacturers also recommend a heavier grade oil for track duty. Not that we're always driving full throttle, but our cars certainly get flogged regularly.
#12
Save the manuals!
iTrader: (5)
These are the things you need to worry about...
https://ls1tech.com/forums/general-m...rain-plug.html
https://ls1tech.com/forums/generatio...rain-plug.html
https://ls1tech.com/forums/generatio...ease-help.html
#13
TECH Enthusiast
iTrader: (3)
Again, I'm not an oil expert, but I chose the 0w40 Mobil one based on UOA results at BITOG, especially since Mobil one 5w30 and 10w30 are notorious for thinning out at operating temp. Probably a lot thinner than the dino 5w30 you're using. You might also notice that manufacturers also recommend a heavier grade oil for track duty. Not that we're always driving full throttle, but our cars certainly get flogged regularly.
it's the opinion of some that the Mobil 1 0w40 is the next best thing to GC.
the idea for the 0w40 grade for Mobil 1 is that Mobil 1 tends to be on the lighter side and GC was a heavy 0w30 and therefore a good match for the LS.
#17
#19
While doing an oil change today I found some oil shavings stuck on the filler plug magnet. I know some metal fuzz is normal but this is more than I've ever seen before. Besides the obligatory LS1 piston slap, there's no noise coming from the motor. Oil pressure is very healthy too: 40 PSI at idle and 60ish going down the road. 84000 miles on the clock.
Now the question is, do I go ahead with the 0w40 Mobil one I was going to use or should I use a heavier grade like 20w50 or 15w50 since these shavings could've come from the bearings?
Now the question is, do I go ahead with the 0w40 Mobil one I was going to use or should I use a heavier grade like 20w50 or 15w50 since these shavings could've come from the bearings?
#20
Pontiacerator
iTrader: (12)
Shavings stuck to the magnet are not from bearings, Bearings are not magnetic. That's ALOT of material IMO most likely places that would come from is the cam-lifters-rockers-valve tips or timing chain-sprockets. I've owned many LS cars and never seen anything like that on my magnets.
The other two LS1 Firebirds I've owned have been occasional use cars, but I have not seen the likes of this in the 5-6 oil changes I've done on them.
Last edited by RevGTO; 03-17-2017 at 08:15 PM.