Ran m20 with no oil, now sounds terrible😳

[bangn]

lol @ 10/30.

Look forward to the next thread being about sudden oil leaks.

[TobyB]

High Milage Full Synthetic 10w-30

Yeah, for an engine that's had bearing damage, I'd go the other way
and see if you can find some 20-60...

Most of us use 20-50.

And oil loss usually kills the bottom end first. Rod bearings, usually.
Sometimes it'll wipe out a cam journal, too.

Oil. Water. Everything else is (usually) pretty negotiable...

t

[digger]

10W-30 is probably a little thin for summer in an m20 would depend how hot the oil gets though. a xxW-50 or xx-40 is much preferred. this is for a normal engine to.

they have 20W-70 around these parts id be throwing it in in the OP situation

[hallockg806]

how long does it take for the oil pressure light on dash to go out both when stone cold and a hot restart?

I have no oil pressure gauge

[bangn]

oh dear.......

maybe the picture of the oil can is actually a kettle.

[hallockg806]

I dont know I tired to help.......

M20's can take some abuse, but they dont sound like a diesel and live very long in my experience well no gas engine does for that matter....

OP when you drained the oil did it look like bass boat hull..... Have a Glitter look to it???? You do know that the M20 calls for a 20w50 weight engine oil right????

It was straight black. No pearlescent look to it or glitter. And no I didn't know that. I'll drain it again and throw in some

[hallockg806]

Yeah, for an engine that's had bearing damage, I'd go the other way
and see if you can find some 20-60...

Most of us use 20-50.

And oil loss usually kills the bottom end first. Rod bearings, usually.
Sometimes it'll wipe out a cam journal, too.

Oil. Water. Everything else is (usually) pretty negotiable...

t

For sure. Thanks for the help! I'll throw in some thicker oil after I burn most of this

[hallockg806]

10W-30 is probably a little thin for summer in an m20 would depend how hot the oil gets though. a xxW-50 or xx-40 is much preferred. this is for a normal engine to.

they have 20W-70 around these parts id be throwing it in in the OP situation

Yea for sure. I'll be putting it in once I burn most of this oil

[bangn]

so have you been running 30w in it all this time? that's why you've had this oil usage issue.

[hallockg806]

so have you been running 30w in it all this time? that's why you've had this oil usage issue.

Yea I have. Shit. I had no idea!! I'll swap it out today!!!

[ThatOneEuroE30]

I'll throw in some thicker oil after I burn most of this

[supermansocks95]

Yea for sure. I'll be putting it in once I burn most of this oil

No, my good sir. Use 20w-50 ASAP. I use Castrol 20w-50 in the summer and I used rotella t5 15w-40 this last winter. Ran just fine. Don't play with your engine, give it what it needs.

[TobyB]

...especially because it's been loved very hard just recently...

t

[Todd Black 88]

I smell FredK

[AndrewBird]

10W-30 isn't going to hurt anything, just might be a bit thin for warm temps.

At this point, any oil is best. lol You might have gotten lucky and not damaged anything immensely, but that engine is still a ticking time bomb.