This is likely a basic question, but here it goes.
gauge has been steady as a rock right at 80. We changed the oil
and all was fine, but after about 30 hours the gauge has started to jitter, hovering around the same 80, but jittering. When we lower the rpms it steadies.
No other problems are apparent: purrfect sound, oil levels are normal, temperature is ideal, etc.
In the past the gauge jitterred when running the engine
at lower rpms, but now it's jittering at our normal running rpms of 1800.
We're just checking to see if there's a reason for concern. Is this something we need to look into?
Linda and Ricardo