Posted by ransley on February 15, 2010, 8:53 pm
I would use 0-30 Mobil 1.
Posted by Daniel who wants to know on February 15, 2010, 10:02 pm
Sure, (to expand on ransley's post) If you change your own oil put in 3.5
quarts not the 3.9 that is specified. If you have it changed tell them to
only put in 3 quarts and top it off yourself later as they see the 3.9
number and just put in 4 from the bulk oil resulting in an overfill. The
oil level on the dipstick must never be above the max/full mark as
overfilling is known to reduce MPG and cause oil to pool in the bottom of
the intake manifold. It is best to have the level be just slightly below the
full mark as the Prius doesn't consume much oil so you don't have to worry
about it dropping below add between the 5K changes. Also look up the
"Maintenance Required" light reset procedure in the owner's manual or online
as some times the change places forget to do it.
0W30 oil is OK but never go thicker that the specified 5W30.
Posted by Elmo P. Shagnasty on February 15, 2010, 11:17 pm
um....it doesn't consume ANY oil.
If it does, it's broken.
Oil consumption should not be a given in a modern engine (well, unless
it's a VW...)
Posted by ransley on February 16, 2010, 3:48 am
I dont believe in 5000 mil changes unless its all highway, to me its a
guidline and 3500 is better for the motor. I notice a performance drop
off around 25-3000. The Mobil 1 0-30 gives you better milage, its
probaby one of the best oils made
Posted by Daniel who wants to know on February 16, 2010, 5:15 am
I have Mobil 1 AFE 0W30 in my 95 Grand Caravan 3.3 right now but that is
only because of the group 4 base stock shortage from the hurricanes. I
normally run 5W30 non-EP in it.
At any rate have you looked at how easy a life the 1NZ-FXE ICE (engine) in
the Prius lives? It is babied while it is cold, spun up to 1000 RPM before
the fuel and spark are added, doesn't usually just idle, is completely
stopped at times, and in the case of the one in the US spec NHW20 is
preheated by hot coolant stored in a thermos bottle. Considering all of
that I feel that 5k is more than enough. The NHW11 had an interval of 7.5k
and it didn't have the thermos bottle and used a regular O2 sensor upstream
instead of an air/fuel ratio (wideband) sensor like the NHW20. That and the
block has an offset crank so the pistons have less side load on them during
the power stroke.