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jay55jay · 02-14-2011, 07:14 PM

I have a 94 GMC C3500 crew cab with the 454 in it. My question is what Oil would u recommend I like Synthetic oil. The truck has about 100000 miles on it. Any suggestions some said use reg oil with a Quart of Lucas?. I also can get
gallons of 15,40 from my job any thoughts on using this oil maybe with a quart of lucas. Any thoughts out there thanks...

02-14-2011, 07:14 PM	#1
jay55jay Registered User Join Date: Mar 2010 Location: bayville,nj Posts: 165	Motor Oil Selection I have a 94 GMC C3500 crew cab with the 454 in it. My question is what Oil would u recommend I like Synthetic oil. The truck has about 100000 miles on it. Any suggestions some said use reg oil with a Quart of Lucas?. I also can get gallons of 15,40 from my job any thoughts on using this oil maybe with a quart of lucas. Any thoughts out there thanks...