I know it isnt exactly the most reliable guage in a 5.0, but my car has 174K miles, and the guage is sitting on the "L" on the "normal" most of the time... is this low? i have an oil cooler, and just went from synthetic, to 10w30 quaker state non synthtc. Is it dying

it runs good, no noises that i can notice. thnx for any replies.
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90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607
next mods: subframes, mac h-pipe