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just had the oil changed ....went to 5w20 high mileage ...was going to use blend , but all he had was full synthetic... so i had used a little over a qt of 5w20 between changes....not bad...let see how hm synthetic does......he used napa full synthetic

also showed this site to my mechanic....very interested in reading through it...

Ok, i chaged the pcv (old was filthy) changed the plugs..(not too bad but needed changing per mechanic) and air filter,(need it) and he topped off with 5w30..and we will keep monitoring...

Ok so maybe it a dumb question

here is maybe a dumb question...but i currently have 5w20 in the car if i top off w 5w30 does it make 5w30 less effective or dilute its thickness for lack of a better term?

Thanks everyone....

would it be worth my time to get a compression test done?

the pcv valve i know i have not changed it since i bought the car in in early 2017....i best change it

you know i was not checking the levels...too much going on for me too remember to do so....but i am now! but i always check under car for drips..never seen any...mechanic checked engine and pan for leaks ...nothing...

my mechanic uses carquest ......let me back up and tell the story ...i usually have my mechanic do oil changes. but i was in a hurry and went to one of the chain change places and at about 2400 miles the oil light flickered...i got to work and checked the dipstick and it was pretty low ...i...

with a high mileage car 85k 2015 hyundai accent. some oil consumption. 5w20 oil..(monitoring it right now) so far 12 oz per 1200 miles. so in theory 30oz per 3000 miles is that a lot? folks have suggested using 5w30 or 5w20 high mileage or go full synthetic....i am not leaking oil, pcv valve...