I am sure this has not been talked about in the last week or so
but did not see anyone mention Archoil. I do not use any oil additives but have been thinking of trying one in the 79 Truck. The engine is original and tired but still runs well. I use synthetic oil in it now and seems to help with oil pan leak but oil pressure fluctuates on gauge. I have seen a few Archoil videos and one by Jay Leno, he would not lie to me would he. There has to be something out there that has better lubrication properties to add to engine oil. I know a lot of oil lubricants are just smoke and mirrors but wanted to know if anyone has used something that added some improvement.
I recently found Triflow lubricant in a bottle and this lubricant blows away all previous lubricants I have used.