TXGREEK Posted August 16, 2018 Share Posted August 16, 2018 If his oil level was too low, he’d be getting fluctuations; the gauge would be moving up and down while at a steady RPM. Check engine light would come on and the fuel pump would be shut down to kill the motor. O.P., save yourself a trip to the dealer to be told that it’s fine. You’re good for sure.He’s better off going to get it checked out this way at least he’ll be good to go either way. Besides, you going to fix for free if anything does happen? Don’t think so Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
TXGREEK Posted August 16, 2018 Share Posted August 16, 2018 If his oil level was too low, he’d be getting fluctuations; the gauge would be moving up and down while at a steady RPM. Check engine light would come on and the fuel pump would be shut down to kill the motor. O.P., save yourself a trip to the dealer to be told that it’s fine. You’re good for sure.He’s better off going to get it checked out this way at least he’ll be good to go either way. Besides, you going to fix for free if anything does happen? Don’t think so Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
ltzsilverado Posted August 16, 2018 Author Share Posted August 16, 2018 5 hours ago, TXGREEK said: He’s better off going to get it checked out this way at least he’ll be good to go either way. Besides, you going to fix for free if anything does happen? Don’t think so Sent from my iPhone using Tapatalk I plan on making a appointment for the dealer soon and have them look at it. Just for peace of mine, but I don't think they will do any thing. Plus my factory trailer brake controller don't work when I tested it on my father's trailer Quote Link to comment Share on other sites More sharing options...
ltzsilverado Posted August 16, 2018 Author Share Posted August 16, 2018 10 hours ago, ltzsilverado said: I plan on making a appointment for the dealer soon and have them look at it. Just for peace of mine, but I don't think they will do any thing. Plus my factory trailer brake controller don't work when I tested it on my father's trailer I just looked the information up on alldata and min. Oil pressure is 22psig at 1000 rpm , 30 psig at 2000 Quote Link to comment Share on other sites More sharing options...
'17 Sierra Posted August 17, 2018 Share Posted August 17, 2018 2 hours ago, ltzsilverado said: I just looked the information up on alldata and min. Oil pressure is 22psig at 1000 rpm , 30 psig at 2000 ? Quote Link to comment Share on other sites More sharing options...
'17 Sierra Posted August 17, 2018 Share Posted August 17, 2018 Also if you feel you would like another opinion, hook up a mechanical oil pressure gauge and I bet you’ll find it’s actually higher than what yours reads. Quote Link to comment Share on other sites More sharing options...
TXGREEK Posted August 17, 2018 Share Posted August 17, 2018 In all seriousness, your vehicle is still under warranty, go get it checked! [emoji125] Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
NWI Denali Posted August 17, 2018 Share Posted August 17, 2018 My 6.2 shows 20 psi at idle too when towing in 90 degree heat. Quote Link to comment Share on other sites More sharing options...
badge171 Posted August 17, 2018 Share Posted August 17, 2018 Tailor the truck to your needs, dial the engine to your needs. If your desert driving,towing uphill 0w-20 ,Just ain't gonna give you the protection your looking for. Millage Really Towing? 5w-30 for a starting point. . Any of these trucks showing pics of there Oil Pressure Gauges thinking they are accurate gauges , crazy ,not much better than old school dummy light. 1 Quote Link to comment Share on other sites More sharing options...
FL335i Posted August 18, 2018 Share Posted August 18, 2018 (edited) My 5.3L has always shown 30psi or 1 needle under 30psi at hot idle in FL. Even when it's 99 outside. Could be the oil if you had a shop or dealer do it. I would be curious if you did your own oil change with PP/Valvoline/M1 0w-20 what the pressures would be. Edited August 18, 2018 by FL335i Quote Link to comment Share on other sites More sharing options...
ltzsilverado Posted August 18, 2018 Author Share Posted August 18, 2018 4 hours ago, FL335i said: My 5.3L has always shown 30psi or 1 needle under 30psi at hot idle in FL. Even when it's 99 outside. Could be the oil if you had a shop or dealer do it. I would be curious if you did your own oil change with PP/Valvoline/M1 0w-20 what the pressures would be. My truck has not seen a dealership since I bought it. Did first oil change with mobile 1 020 at 700 miles and been every 5000 miles since Quote Link to comment Share on other sites More sharing options...
FL335i Posted August 19, 2018 Share Posted August 19, 2018 So much for that theory. I'd take it in and if they say "it's normal". Then ask for a print out of the GM Service Manual that provides the oil pressure range spec. Quote Link to comment Share on other sites More sharing options...
TJay74 Posted August 19, 2018 Share Posted August 19, 2018 On 8/15/2018 at 1:59 PM, Coolboatguy said: I have not logged temp, but I'm sure its probably scalding. Normal low for me is 12psi. This is just the lowest I've seen and probably is from the high temps and thus the only reason I took a picture. According to dealers 6psi is the minimum so apparently they don't care about anything above that. The corvette boards recite roughly the same. It should be noted that mine is a rebuilt motor as well and I'm more interested in whats normal in case I want to take it to the shop I had it built at. Some say cam bearings could cause this as well as an oil pump. I looked at other sites and they confirmed the use what ever oil weight that gets you 10 psi/1000 at 212 degrees reasoning. I dont believe the trucks support the oil temp feature. I use HPT as well, my truck never shows oil temps but my 2017 Camaro SS does. Same engine in both vehicles. Quote Link to comment Share on other sites More sharing options...
TJay74 Posted August 19, 2018 Share Posted August 19, 2018 Part of the issue is the 0w20 oil, that is used for trying to improve the corp fuel mileage numbers and that reason only. Anything the manufactures can do to tweak out some more MPG. Junk that stuff and either run a 0w30 or 5w30 if you are going to tow. Second, the oil pumps in these engines are dual stage. So they have a low and high mode in them as well, again to help with EPA numbers. Quote Link to comment Share on other sites More sharing options...
Jon A Posted August 19, 2018 Share Posted August 19, 2018 2 hours ago, TJay74 said: I dont believe the trucks support the oil temp feature. I use HPT as well, my truck never shows oil temps but my 2017 Camaro SS does. Same engine in both vehicles. They do, you just need to set up the software to scan for it. I read engine oil temp with both HPT and Torque on Android. Quote Link to comment Share on other sites More sharing options...
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