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vauxhall omega Oil Warning Light Flickering When going up a steep hill

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addy:
Hi wander if anyone can help. I went out today and when I went up a steep hill (Gleniffer Braes, Average grade: roughly 7 %), near to me. The car was fine untill I got about half way up, then the oil light flickered dimly. So I turned round and nursed it slowly down, when back on level ground it still flickered dimly every now and then. Switched it off and left it for around 3/4 hours, started it and drove home slowly watching for the light. It didn't come back on. I then had to move it slightly from where it was parked, Oil and all other lights went out and stayed off. Now waiting for a while to check the oil level, even though no warning came up for it. Could it have been that with the incline and maybe the oil being hot from the climb and  low but not enough for the warning to come up on the display, going slightly to the back of the sump causing it? The temperature gauge only rose a little bit from where it is normal, then came back down to normal and stayed there when driving down and back home.

Any suggestions will be gratefull. I hope it is simply due to the climb and it isn't something drastic.  Don't seem to be having much luck with FL models, always had PFL and had no where as much trouble.

Thanks
Addy

VXL V6:
Probably a faulty pressure switch, quite common on Vauxhalls and not expensive.

dave the builder:
oil pressure and oil level are 2 different sensors
today was warm and if your car oil was hot ,it will be thinner(less pressure)

oil level could read low on a steep incline
a low enough level could starve the pick up ,resulting in low pressure too

keep an eye on the dipstick

addy:
Thanks for the replies. Yes it was sunny up here today, that is why I was going up the Braes to see the view (best laid plans :D). As said it has never done it before. I am doing a oil service as a precaution. I thought it might be the outside temperature and the climb upsetting it, needed someone to say it could be.

Thanks again.
Addy

ronnyd:
I get a message on the MID saying "check oil level" after about 5k after oil change. Always right up the dipstick when i do check it so ignore it then do the oil change at 6k-ish :D

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