Hello everyone,
I’ve lurked here for a while now but have finally signed up to post my info and ask a question. I want to know if it truly fine to run 40 WT oil in a Nissan QR25DE engine…
1. What kind of vehicle you have: 2011 Altima 2.5 S, 60, 500 miles.
2. What your owner's manual says: API SM and it recommends 5W-30. However, the FSM states that 5W-30 is preferred but also gives a temperature scale where 5W-30/5W-40 is indicated across the temp scale.
3. Where you live: Northern CA, Sacramento area, very hot over the summer.
4. How you drive: Easy most of the time but the car is a daily driver.
5. What your daily drive is like: Short and long trips, daily driver, road tripper, and some mountain drives.
6. Whether your car has any known problems: No known issues but it has consumed about half a quart in roughly 3K.
I am on a run of PU 5W-30 with the OEM filter (the Gohner made one) and things are fine, planning on a 5-6K OCI. The QR engine is not the most refined engine I’ve ever owned, especially on warm up. So my goal is to try to experiment in order to smooth out this engine while providing protection. The car is powerful and very fuel efficient for a 4 CYL and I would be OK with a minor hit in MPG if switching to a 40.
Thanks guys and I would appreciate your responses.
I’ve lurked here for a while now but have finally signed up to post my info and ask a question. I want to know if it truly fine to run 40 WT oil in a Nissan QR25DE engine…
1. What kind of vehicle you have: 2011 Altima 2.5 S, 60, 500 miles.
2. What your owner's manual says: API SM and it recommends 5W-30. However, the FSM states that 5W-30 is preferred but also gives a temperature scale where 5W-30/5W-40 is indicated across the temp scale.
3. Where you live: Northern CA, Sacramento area, very hot over the summer.
4. How you drive: Easy most of the time but the car is a daily driver.
5. What your daily drive is like: Short and long trips, daily driver, road tripper, and some mountain drives.
6. Whether your car has any known problems: No known issues but it has consumed about half a quart in roughly 3K.
I am on a run of PU 5W-30 with the OEM filter (the Gohner made one) and things are fine, planning on a 5-6K OCI. The QR engine is not the most refined engine I’ve ever owned, especially on warm up. So my goal is to try to experiment in order to smooth out this engine while providing protection. The car is powerful and very fuel efficient for a 4 CYL and I would be OK with a minor hit in MPG if switching to a 40.
Thanks guys and I would appreciate your responses.