Engine oil loses viscosity after using fuel injector cleaner

[mousejunks]

Short story: Downtown 350 has 30,000km on it. Decided to add injector cleaner (PEA based) and ran it for a full tank, approximately 300km. When doing random cold engine oil check I noticed the oil, despite originally being 15W-50, lost viscosity and was almost watery. Looking at many other forums this is a known phenomenon, in fact some manufacturers recommend changing the oil after using fuel injector cleaner.

[CROSSBOLT]

Good to know!

[Iahawk]

that's my understanding, as well. Best practice is to run a 'Techron' type cleaner through your final tank of fuel prior to an oil change.

[Stig / Major Tom]

I use Top Tier fuel only.....as recommended by several auto manufacturers.
Apparently these fuels need no internet remedies?
Stig

[mousejunks]

 I always use top grade premium fuels which already have the additives and detergents to keep injectors clean. I did it as a once-off treatment, the bike had no engine issues.