i don't know if this is the right place to post this up but, im about to change my oil and i was wondering if it would be bad to drain the mobil, run conventional for a few days to clean themotor up some, and fill it back up with synthetic. anyone have any input on this? i also have a few left over bottles of mobil 1, but its 5w30. if i run conventional should i run 5w20 to try to get a bit more gunk off? orwould it be pointless? i appreciate any input

 

Waste of time and $$. Run a little Seafoam in the crankcase as per directions just before your next OC if you feel must "clean things up". Otherwise just keep running M-1 or another good Synth. Owners manual calls for 5w-30 or 10w-30 so I never run anything else. Change oil regularly and these motors are very durable under NORMAL operating conditions LOL.

 

^^^What he said!!!

Oils today have enough detergents in them to keep stuff pretty clean but some seafoam in the oil cant hurt. They sell it at any auto store.

 

Sticky on how to use Seafoam

https://ls1tech.com/forums/general-maintenance-repairs/534376-how-seafoam-your-car.html

 

oh yeah, i seafoamed the car when i first got it, but i was just thinking about running the conventional for maybe 200 miles since it's free to me, you know just a quick drain n fill to clean up