Hello,
I had my Maxima 2009 since October 2018, was at 80k miles on the odo. 1 owner.
Previous owner used Nissan conventional 5w30 all the 80k he drove, I have all records, he used to change it every 4k miles.
In November I had the oil changed to my favorite, Mobile 1 AP 5w30 synth with Mobile 1 m110a filter.
I ran that for about 4k miles (short trips, cold weather, excessive idling) and then changed with Amsoil SS 5w30 and mobile 1 filter.
With Amsoil I noticed 1 to 2 mpg loss (22-23mpg to 20-21), other parameters all about the same, tire pressure, routes, congestion, driving habit, speed, etc...
I measure mpg using miles driven over gas pumped, I have a log of every tank fill up and mileage.
Is this loss of mpg a concern that mobile 1 performed better for my engine? Engine is very smooth and quiet either way (Amsoil maybe slightly quieter), doesn't burn or leak. Overall in very good shape.
Thanks
I had my Maxima 2009 since October 2018, was at 80k miles on the odo. 1 owner.
Previous owner used Nissan conventional 5w30 all the 80k he drove, I have all records, he used to change it every 4k miles.
In November I had the oil changed to my favorite, Mobile 1 AP 5w30 synth with Mobile 1 m110a filter.
I ran that for about 4k miles (short trips, cold weather, excessive idling) and then changed with Amsoil SS 5w30 and mobile 1 filter.
With Amsoil I noticed 1 to 2 mpg loss (22-23mpg to 20-21), other parameters all about the same, tire pressure, routes, congestion, driving habit, speed, etc...
I measure mpg using miles driven over gas pumped, I have a log of every tank fill up and mileage.
Is this loss of mpg a concern that mobile 1 performed better for my engine? Engine is very smooth and quiet either way (Amsoil maybe slightly quieter), doesn't burn or leak. Overall in very good shape.
Thanks
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