[xsalvationx]

So on my XB I put in some Mobil 1 synthetic oil. I have noticed a quieter and lower engine. However, RPMs seem to have been increasing. For instance, I'm at a stop light. When it's green and I step on the gas, the engine vrooms more than it used to before I switched oil. Like I have to push down more on the gas a little more to increase speed. Sometimes it gets up to the 4 mark on RPM. Is this because of the oil? Please help.

 

[xsalvationx]

Man, 14 views and still no answer.

 

[gr8scape]

I don't know if the oil would make that much of a difference in the vrooom factor. Did you happen to buy new shoes?

 

[surfMOMster]

A week ago I switched to Mobil 1 5w-20 synthetic.
Seems to run rougher when I first start up the car but the engine quiets down to normal when it's warmed up.Maybe idles a bit lower?not sure. Feels smooth and responsive but no extra vroom noticed (automatic transmission).

 

[xsalvationx]

Naw no new shoes. Maybe I'm thinking too much of it.

 

[RedDragons]

probably thinking too much of it, i switched to synthetic at about 1200 miles and im at about 3300 now and i do think its a little quieter but no difference otherwise.

 

[busixb]

Ive used 02-20 since 500 miles Mobil Syn....sounds great and runs great. About a year after I had it, Toyota started advertising it on their cars at the dealer as factory filled.

 

[ai17828]

I don't know if the oil would make that much of a difference in the vrooom factor. Did you happen to buy new shoes?

:lmfao:

 

[tommytuner]

I have a 2011 xB, built in Dec 2010. Does it come with synthetic from the factory??

 

[xsalvationx]

I don't think so. If you bought it from an actually Toyota dealership it's probably what they use. My local one uses Quaker State for their cars.

 

[scion]

My Scion dealer said that they use semi synthetic oil. Who knows if they are telling the truth. I change my own oil and put in Mobile one synthetic oil.

 

[JRINCON17]

Any milage difference ?

 

[2009Teal]

Sometimes synthetic may lubricate better, and makes less drag on the engine, therefore, may rev higher on idle. I wouldn't think it would make THAT much of a difference.

A lot of dealers use a synthetic blend now a days.

 

[scion]

I haven't noticed any difference in MPG's.

 

[kingofthecrate]

Synthetic oil is a slicker viscosity, if anything you would notice noisier startups when you might feel a little bit more sluggish of a motor with the sticker viscositycold but the end result would give you better lubrication throughout the entire motor. I believe toyota calls for 0/40w which is a very thin oil. I would recommend a 5/20 in hot climates especially if you plan on hot rodding that thing around. You might feel a more sluggish motor with the sticker viscosity but nothing that would really impact exceleration.