Hello I've been looking and looking and I cant find any solid answers on my specific questions.
Basically I have a 2005 Toyota Corolla 1ZZFE 5 Speed with just around 96K. I had been using 5W30 dino oil the entire time i owned the car from around 71K to 91K. Until recently I changed it with Toyota 0W20 in the black bottles since Toyota said 5W20 was ok for 1ZZFE engines and mobil says if 5W20 is ok then 0W20 is ok. The car sees a nice easy Highway run in the morning because i leave home early and then 9/10 a grueling stop and go run on the way home.
Well i recently went to Wally World and they were out of the 0W20 AFE Mobil in the 5 Qt jug and didnt have more than 3 in any 1 qt 0W20 Synthetic so i ended up buying the 0W30 AFE.
Basically concerning this car is the 0W30 a good switch oil? My goals with this car are to do 10K OCI and maintain my good 35MPG Driving which is a good 70%City and 30%HWY while maintaining the highest level of engine protection (I know have my cake and eat it too). I know the 1ZZFE engines used to have oil consumption issues but a 96K miles this car does not consume ANY oil at all and I meticulously maintain it.
The other car is my wife's 2005 Mazda 6i 2.3 MZR Auto. This car does a lot of sitting lately but will soon be doing some driving. I acquired this car at 59K miles and changed the 5W20 dino oil every 5K miles until recently 80K when i changed to 0W20 Toyota oil in it as well. Im wondering if going back to Mobil Full Synthetic 5W20 in the absence of 0W20 at Wally World. This car generally does not win any awards for its gas mileage but it is paid off and I would love to get the most out of the oil in regards to gas mileage but definitely engine protection as I personally don't trust this engine to win reliability awards compared to the 1ZZFE. Which working at a Toyota dealer for over 3 years has proven to be one of the most reliable engines I have ever seen.
It should be noted that both cars have only received factory oil filters since I have had them but I plan on switching to Pure One after seeing a cut open Denso USA filters questionable take on operation.
And final not so daily I also have a 1982 Corolla with a 1JZGTE Twin Turbo Swap. The swap isnt complete and in my possesion the engine has not been run in at least 3 years. When it is finally done and I go to drive this thing what is a good oil for such an old engine. It should be noted that I did open the engine up and everything internally looks brand new. I wasnt sure if something like 0W30 or 5W30 Mobil or Amsoil full synthetic would be good for a turbo engine(turbos are probably questionable due to age).
Anyway I know I rambled but just trying to give the best detail.
Thanks for any input.
Basically I have a 2005 Toyota Corolla 1ZZFE 5 Speed with just around 96K. I had been using 5W30 dino oil the entire time i owned the car from around 71K to 91K. Until recently I changed it with Toyota 0W20 in the black bottles since Toyota said 5W20 was ok for 1ZZFE engines and mobil says if 5W20 is ok then 0W20 is ok. The car sees a nice easy Highway run in the morning because i leave home early and then 9/10 a grueling stop and go run on the way home.
Well i recently went to Wally World and they were out of the 0W20 AFE Mobil in the 5 Qt jug and didnt have more than 3 in any 1 qt 0W20 Synthetic so i ended up buying the 0W30 AFE.
Basically concerning this car is the 0W30 a good switch oil? My goals with this car are to do 10K OCI and maintain my good 35MPG Driving which is a good 70%City and 30%HWY while maintaining the highest level of engine protection (I know have my cake and eat it too). I know the 1ZZFE engines used to have oil consumption issues but a 96K miles this car does not consume ANY oil at all and I meticulously maintain it.
The other car is my wife's 2005 Mazda 6i 2.3 MZR Auto. This car does a lot of sitting lately but will soon be doing some driving. I acquired this car at 59K miles and changed the 5W20 dino oil every 5K miles until recently 80K when i changed to 0W20 Toyota oil in it as well. Im wondering if going back to Mobil Full Synthetic 5W20 in the absence of 0W20 at Wally World. This car generally does not win any awards for its gas mileage but it is paid off and I would love to get the most out of the oil in regards to gas mileage but definitely engine protection as I personally don't trust this engine to win reliability awards compared to the 1ZZFE. Which working at a Toyota dealer for over 3 years has proven to be one of the most reliable engines I have ever seen.
It should be noted that both cars have only received factory oil filters since I have had them but I plan on switching to Pure One after seeing a cut open Denso USA filters questionable take on operation.
And final not so daily I also have a 1982 Corolla with a 1JZGTE Twin Turbo Swap. The swap isnt complete and in my possesion the engine has not been run in at least 3 years. When it is finally done and I go to drive this thing what is a good oil for such an old engine. It should be noted that I did open the engine up and everything internally looks brand new. I wasnt sure if something like 0W30 or 5W30 Mobil or Amsoil full synthetic would be good for a turbo engine(turbos are probably questionable due to age).
Anyway I know I rambled but just trying to give the best detail.
Thanks for any input.