I'm nearing the next oil change for my 2004 Celica GT (1ZZ-FE, 270 000km), and I'm wondering if I should change from the M1 5W30 High-Mileage that I've been using to M1 0W40.
I'm thinking that since we're heading into the colder part of the Canadian winter, and I'll be seeing -30 to -35 starting temps, the thinner start weight will be beneficial. And as for the increased running weight, I use the High-Mileage because I burn about 1 liter of oil every 2000 km. Not a concerning amount, but since the car is at 270 000 km I figure the added weight won't hurt and it may slow consumption. My only concern is that switching to an oil with less seal conditioner might cause greater consumption, despite the increased viscosity.
I'm sure there will be no noticeable difference, but before I make the change I'm wondering if anyone has any input.
I'm thinking that since we're heading into the colder part of the Canadian winter, and I'll be seeing -30 to -35 starting temps, the thinner start weight will be beneficial. And as for the increased running weight, I use the High-Mileage because I burn about 1 liter of oil every 2000 km. Not a concerning amount, but since the car is at 270 000 km I figure the added weight won't hurt and it may slow consumption. My only concern is that switching to an oil with less seal conditioner might cause greater consumption, despite the increased viscosity.
I'm sure there will be no noticeable difference, but before I make the change I'm wondering if anyone has any input.