# Oil pressure priming slow ?

**URL:** <https://forum.g2ic.com/t/oil-pressure-priming-slow/101587>\
**Category:** Stock Engine-Bay Components\
**Created:** [October 4, 2015, 2:03am UTC](https://forum.g2ic.com/t/oil-pressure-priming-slow/101587 "2015-10-04T02:03:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Prof007](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/p/ecb155/32.png) [@Prof007](https://forum.g2ic.com/u/Prof007)\
**Post date:** [October 4, 2015, 2:03am UTC](https://forum.g2ic.com/t/oil-pressure-priming-slow/101587/1 "2015-10-04T02:03:07Z")

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Not sure what else to call it, but how long should it normally take after cranking the engine for oil pressure to start reading? At a cold engine start, mine takes (at maximum) 3 full seconds after the engine fires before the oil light goes off, or when I see oil pressure build up on the gauge (just installed). After pressure reads on the gauge, it goes right up to 80 PSI in about 2 seconds.

With a warm engine, the oil light goes off less than a second after the engine fires.

I’m just paranoid that 3 seconds is too long for pressure to build.

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**Author:** ![welfare](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/w/85f322/32.png) [@welfare](https://forum.g2ic.com/u/welfare)\
**Post date:** [October 9, 2015, 12:52pm UTC](https://forum.g2ic.com/t/oil-pressure-priming-slow/101587/2 "2015-10-09T12:52:43Z")

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what viscosity oil? cold oil is going to flow slower

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**Author:** ![Prof007](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/p/ecb155/32.png) [@Prof007](https://forum.g2ic.com/u/Prof007)\
**Post date:** [October 11, 2015, 1:09am UTC](https://forum.g2ic.com/t/oil-pressure-priming-slow/101587/3 "2015-10-11T01:09:57Z")

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It’s 5w -30 Mobil 1. Sits overnight in a garage that doesn’t get below 65 degrees.