[jon b]

Engine rebuilt 5 yrs ago.... just did synthetic oil change 2 weeks ago?? Its comes on then goes away. Oil level is within dipstick level...

 

[2cheap4dealer]

What was the weight of the oil you used?

 

[scotts13]

1. The difference in pressure consequential to oil weight is too small to be significant. If you have poor pressure with too-thin oil, it still won't be good with the right oil.

2. That's odd - the oil pressure warning is supposed to be disabled at low RPM. Something electrical? Regardless, start with measuring the actual oil pressure with a mechanical gauge. Avoid driving until you confirm safe oil pressure.

 

[ATWPASSAT1.8T]

Oil pressure sensor can fail, giving false warnings, but as scotts13 says:

start with measuring the actual oil pressure with a mechanical gauge. Avoid driving until you confirm safe oil pressure.