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General Site Info => General Discussion => Topic started by: dumbucket1 on July 12, 2009, 05:44:50 pm

Title: 91 c1500
Post by: dumbucket1 on July 12, 2009, 05:44:50 pm

It has a 305 with 194k miles on it. Fresh 10w30 conventional oil with acdelco filter. Is 6psi oil pressure at hot idle in gear with foot on the brake acceptable? I ask because it trips the check gauges light. I hooked up a mechanical gauge at the port by the oil filter to verify the pressure.

Title: Re: 91 c1500
Post by: zieg85 on July 12, 2009, 05:59:52 pm

Low yes, but I have had some old SB engines have 5 psi at idle when hot and last for years with no problems.  Just keep an eye on the oil level and with almost 200K on it 10W-40 probably wouldn't hurt you either... My $.02

Title: Re: 91 c1500
Post by: dumbucket1 on July 12, 2009, 06:18:28 pm

Thats pretty well what i figured. May just take that bulb out that lights up that check gauges message.

Title: Re: 91 c1500
Post by: VileZambonie on July 12, 2009, 06:35:40 pm

If you verified it, its tired. Run 20w50

Title: Re: 91 c1500
Post by: zieg85 on July 12, 2009, 08:46:30 pm

I would just live with the light, it may sometime come on if you say overheat and you are going down the road.  Again, My $.02