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Originally Posted by PointCrossed
Ok why does the toyota service give you an option for synthetic oil? I have had synthetic oil in my truck from the first oil change, and I check my oil every 5 fillups and change my synthetic every 10,000 miles and I will do that till the day I die. BTW I get ~17mpg and I am sure its my exhaust mod.
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Its a free country and you can use whatever you want. Toyota service gives everyone the option to use synthetic or NOT. What I was told was OFF the record,
because it is very hard to prove if synthetic caused an oil leak or if it was the seal. But they were not specifically designed for synthetic.
It is just like aftermarket Air filters, they work in some trucks and not others. Synthetic works in some vehicles and not in others.
I am glad it works or you and others.
My dads DC just got 19mpg w/5 people on a trip to calif. It has regular oil (from the dealer) and is 100% stock otherwise.
I have seen way to many cars with to many of the go fast/ get better mpg aftermarket stuff (ie. plugs/filters/magnets/ionizer/ect....) and dont believe any of it works, including synthetic oil. But that is just my opinion (old school). Nowadays they recommend oil changes at 5k (I personally dont believe in that either) but for $21.95 oil changes every 5k, kinda seems silly to pay for $5 or so a qt. for synthetic.
The newer sequoias have synthetic from the factory in the diff and the seals are different than previous years.
They also dont recommend synthetic for rear axle seals (see attachment) in earlier models due to the seals.
I am not going to argue with anyone on this.
You use what works for you and i will use what works for me.
And everyone lived happily ever after.
