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General => Technical | How To => Topic started by: mousejunks on October 06, 2022, 01:27:25 PM

Title: Engine oil loses viscosity after using fuel injector cleaner
Post by: mousejunks on October 06, 2022, 01:27:25 PM

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.

Title: Re: Engine oil loses viscosity after using fuel injector cleaner
Post by: CROSSBOLT on October 06, 2022, 01:55:03 PM

Good to know!

Title: Re: Engine oil loses viscosity after using fuel injector cleaner
Post by: Iahawk on October 06, 2022, 03:54:08 PM

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.

Title: Re: Engine oil loses viscosity after using fuel injector cleaner
Post by: Stig / Major Tom on October 06, 2022, 05:34:48 PM

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

Title: Re: Engine oil loses viscosity after using fuel injector cleaner
Post by: mousejunks on October 07, 2022, 09:53:01 AM

 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.