Threw in 3 quarts of 10w-40 Valvoline conventional, and a quart of 10w30 quaker state synthetic into my corolla this morning. I think that makes a 10w-37.5? Anyways...
Pouring in: The 10w-40 was noticably thicker than the one bottle of 10w30 I put in, and took longer to pour in.
Starting the car up: Took the same effort to start up, 3 cranks, no drama, no lack of oil flow.
Hood open: Sounds just as quiet, maybe a little quieter than the 10w30.
Sitting down: Idle was the same as always.
Driving: Engine was just as eager as always to rev, driving felt the same. Only difference I spotted was when I was making a turn from a stop, if I gave it a little gas my tires would lose traction for a moment, didnt happen this time. Also my engine would make a harmonic at a certain RPM, does not do it anymore.
Starting it up cold later on: Started up very smoothly and drove fine.
Overall: Made my engine feel like when I ran castrol high mileage 10w30. Im sure they were close to being just as thick too. I bought the Valvoline on sale at kmart, gave a quart to a friend so I had to make up for the missing with the quaker state. I'll post back again next week to see if my MPG decreased at all, and see if I burned any (usually burn a quart every 1k).
I originally bought the Valvoline to see if it would decrease my consumption, being a thicker weight. Shouldnt have given that last quart away, but I doubt it matter much. Was going to fill with regular 10w30 havoline today, but decided if I didnt use it now I probally wasnt going to use it. I posted this for the #@$%! of it, and because im sure some people are curious what a thicker weight will do to their engine.
Pouring in: The 10w-40 was noticably thicker than the one bottle of 10w30 I put in, and took longer to pour in.
Starting the car up: Took the same effort to start up, 3 cranks, no drama, no lack of oil flow.
Hood open: Sounds just as quiet, maybe a little quieter than the 10w30.
Sitting down: Idle was the same as always.
Driving: Engine was just as eager as always to rev, driving felt the same. Only difference I spotted was when I was making a turn from a stop, if I gave it a little gas my tires would lose traction for a moment, didnt happen this time. Also my engine would make a harmonic at a certain RPM, does not do it anymore.
Starting it up cold later on: Started up very smoothly and drove fine.
Overall: Made my engine feel like when I ran castrol high mileage 10w30. Im sure they were close to being just as thick too. I bought the Valvoline on sale at kmart, gave a quart to a friend so I had to make up for the missing with the quaker state. I'll post back again next week to see if my MPG decreased at all, and see if I burned any (usually burn a quart every 1k).
I originally bought the Valvoline to see if it would decrease my consumption, being a thicker weight. Shouldnt have given that last quart away, but I doubt it matter much. Was going to fill with regular 10w30 havoline today, but decided if I didnt use it now I probally wasnt going to use it. I posted this for the #@$%! of it, and because im sure some people are curious what a thicker weight will do to their engine.
