The Honda PCX / Forza / ADV150 / SH Forums

What are the possible causes and is it disastrous?

If coolant is getting in the engine oil, there are typically several symptoms. 1) The oil will almost always have the color of "coffee with cream". 2) if it's getting in via a failed head gasket, the coolant will get blown out from the overflow tank due to being pressurized from combustion .... and the "smoke" from the exhaust will not be blue (like from burning oil) but rather ash white due to the coolant steam from combustion.

If your oil is not the color of "coffee with cream", then it's unlikely that there's oil in it.

Main causes of coolant in engine (in no particular order) are failure of waterpump mechanical seal, crack in cylinder casting, leaking cylinder head gasket.
Have you had an oil change recently?
Could be someone has put the wrong type of oil in.
I've never seen red engine oil like that.
Fork oil yes, engine oil no.

gn2 wrote: ↑Sun Aug 08, 2021 6:10 pm Main causes of coolant in engine (in no particular order) are failure of waterpump mechanical seal, crack in cylinder casting, leaking cylinder head gasket.
Have you had an oil change recently?
Could be someone has put the wrong type of oil in.
I've never seen red engine oil like that.
Fork oil yes, engine oil no.

The mechanic put in Motul 7100, but I wasn't there when he poured it in to see the colour.

gn2 wrote: ↑Sun Aug 08, 2021 6:10 pm Main causes of coolant in engine (in no particular order) are failure of waterpump mechanical seal, crack in cylinder casting, leaking cylinder head gasket.
Have you had an oil change recently?
Could be someone has put the wrong type of oil in.
I've never seen red engine oil like that.
Fork oil yes, engine oil no.

Looks like two stroke oil to me.

I think I wouldn't use the bike and either get on to your garage or drain the sump, see what was in it and replace.

Has your coolant level dropped and is it red?

you you wrote: ↑Mon Aug 09, 2021 4:01 pm Looks like two stroke oil to me.

Aye, it could well be.
Ah, how I miss the smell of two stroke.....

150pcxer wrote: ↑Mon Aug 09, 2021 2:26 pm The mechanic put in Motul 7100, but I wasn't there when he poured it in to see the colour.

Turns out Motul 7100 4-stroke oil is indeed red, very weird.
Every day a school day.

https://d23zpyj32c5wn3.cloudfront.net/i ... 1579619846

gn2 wrote: ↑Sat Aug 14, 2021 7:35 pm

150pcxer wrote: ↑Mon Aug 09, 2021 2:26 pm The mechanic put in Motul 7100, but I wasn't there when he poured it in to see the colour.

Turns out Motul 7100 4-stroke oil is indeed red, very weird.
Every day a school day.

https://d23zpyj32c5wn3.cloudfront.net/i ... 1579619846

Excellent.

So at the end of the day everything is OK with the bike. Just the colour of the new oil causing a bit of confusion.

gn2 wrote: ↑Sat Aug 14, 2021 7:30 pm

you you wrote: ↑Mon Aug 09, 2021 4:01 pm Looks like two stroke oil to me.

Aye, it could well be.
Ah, how I miss the smell of two stroke.....

I do wind down the car window to smell it sometimes. Getting rarer

you you wrote: ↑Sun Aug 15, 2021 1:26 am

gn2 wrote: ↑Sat Aug 14, 2021 7:30 pm

you you wrote: ↑Mon Aug 09, 2021 4:01 pm Looks like two stroke oil to me.

Aye, it could well be.
Ah, how I miss the smell of two stroke.....

I do wind down the car window to smell it sometimes. Getting rarer

A wee while ago there was a procession of old trad 2t scooters through the centre of town, must have been two to three hundred of them, I was following driving a bus about two cars back from the end, with the cab window open and it was utterly intoxicating.