318 low oil pressure
Wow, that's a clean engine! I run a transmission shop and sometimes I get offered vehicles that the customer elects not to repair, due to a bad (expensive) transmission. IF I'm interested, and decide to buy the vehicle and repair it for my own use, I try to baseline the engine the following way. Usually the oil is dark and/or low, so I add regular (cheap) Dextron III/Mercon fluid to fill the pan to the full mark, then add one more quart ATF. The trans fluid is high detergent, and is still OIL (albeit thin weight, like 0w-20 thin), so it lubricates. I leave this mixture in for a good while, like during the trans repair and shakedown drives. Not a hundred miles, but maybe 20. Then I dump the original oil/ATF and install the regular oil called for (usually 5 or 10w-30) and a good quality filter (WIX/Purolator, etc.). This gently flushes the engine without clogging the strainer or filling the pan with solids like dedicated (solvent based) "engine flush." I have seen these solvent flush products kill engines by washing them out "too good" and starving the bearings. Plus you can't DRIVE the vehicles with that solvent in there, so it can't circulate much and reach everything as good. After I've driven the "new to me" vehicle a while, assessing it and monitoring oil consumption, I keep it full of oil until my regular oil change interval and the last time it needs oil before changing, I add 1qt ATF and repeat the gentle flush. My Jeep Gr.Cherokee 4.0L six had 170K on it and now has 250K, with the oil staying much cleaner, longer, using this tactic. Not a big fan of "snake oil" but I started adding a V8 size "Engine Restore" to it every oil change at 200K and honestly the oil consumption went down from 1qt. every 1500mi., to 1qt. every 3000mi., so it cut it in half. Couldn't verify a power increase, but the Restore does actually work with no ill effects. As clean as your motor is, and low mileage, I'd skip the Restore, but the ATF trick can't hurt. Use 10w-30 and a good filter afterwards and you're set. I'd also use a zinc additive on any flat-tappet engine, like Rislone EOS or Lucas TB-Zinc or even regular STP (has zinc).
Wow, that's a clean engine! I run a transmission shop and sometimes I get offered vehicles that the customer elects not to repair, due to a bad (expensive) transmission. IF I'm interested, and decide to buy the vehicle and repair it for my own use, I try to baseline the engine the following way. Usually the oil is dark and/or low, so I add regular (cheap) Dextron III/Mercon fluid to fill the pan to the full mark, then add one more quart ATF. The trans fluid is high detergent, and is still OIL (albeit thin weight, like 0w-20 thin), so it lubricates. I leave this mixture in for a good while, like during the trans repair and shakedown drives. Not a hundred miles, but maybe 20. Then I dump the original oil/ATF and install the regular oil called for (usually 5 or 10w-30) and a good quality filter (WIX/Purolator, etc.). This gently flushes the engine without clogging the strainer or filling the pan with solids like dedicated (solvent based) "engine flush." I have seen these solvent flush products kill engines by washing them out "too good" and starving the bearings. Plus you can't DRIVE the vehicles with that solvent in there, so it can't circulate much and reach everything as good. After I've driven the "new to me" vehicle a while, assessing it and monitoring oil consumption, I keep it full of oil until my regular oil change interval and the last time it needs oil before changing, I add 1qt ATF and repeat the gentle flush. My Jeep Gr.Cherokee 4.0L six had 170K on it and now has 250K, with the oil staying much cleaner, longer, using this tactic. Not a big fan of "snake oil" but I started adding a V8 size "Engine Restore" to it every oil change at 200K and honestly the oil consumption went down from 1qt. every 1500mi., to 1qt. every 3000mi., so it cut it in half. Couldn't verify a power increase, but the Restore does actually work with no ill effects. As clean as your motor is, and low mileage, I'd skip the Restore, but the ATF trick can't hurt. Use 10w-30 and a good filter afterwards and you're set. I'd also use a zinc additive on any flat-tappet engine, like Rislone EOS or Lucas TB-Zinc or even regular STP (has zinc).
