The Fj is my first new vehicle (besides sportbikes). When is the Fj considered broke in? I want to switch to synthetic, but I know synthetic can halt proper breakin and end up costing horsepower if switched too soon. Any ideas? 3,000......5,0000 miles?
Good question! I just changed my oil for the first time today (1500 miles) and I did not use synthetic either. I'm thinking of changing over to synthetic at the first 5000 mile oil change that Toyota recommends.
Matt
__________________ 07 FJ Cruiser 4wd Automatic / Black Diamond 02 Suzuki SV650S / Blue
Yeah, on my 07' kawasaki zx-6r, kawa says 600 miles for break in, but I waited until 1,200 to switch . I'm only at 2,000 on the fj, so I might wait until the 5,000 mile mark with one reg. oil change in between...
There are many, many threads on this topic and your going to get answers all over the board on this question. The bottom line. Change it over anytime you want. You can't hurt it.
DEWFPO
__________________ 2007 FJ, 5AT, Sun Fusion Yellow, CQ, UP, GY, RB, 2Q, EL, VS.
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Actually, you can't switch at anytime. Rings take time to properly seat. Synthetic oil is so slick that it won't allow the wear that needs to take place for that to happen. Switching too soon can result in an weak motor with way less power than it's supposed to have. I've seen motorcycles switched to soon that have 10% or so LESS horsepower than properly broken in bikes that were switched later. I'll wait till 5,000 just to be safe. I live in the mountains, so I've gone through a bunch of load cycles, rpm ranges, etc. Should be broken in right.
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08' Sandstorm 6mt FJ blacked out with 3" OME lift, BFG m/t KM2's, All Pro front bumper and skid, smittybilt winch, homemade sliders, homemade skids, trail damaged rear bumper.
07' Kawasaki Ninja zx-6r
73' VW Thing
Actually, you can't switch at anytime. Rings take time to properly seat. Synthetic oil is so slick that it won't allow the wear that needs to take place for that to happen. Switching too soon can result in an weak motor with way less power than it's supposed to have. I've seen motorcycles switched to soon that have 10% or so LESS horsepower than properly broken in bikes that were switched later. I'll wait till 5,000 just to be safe. I live in the mountains, so I've gone through a bunch of load cycles, rpm ranges, etc. Should be broken in right.
I have to ask the question why do many new vehicles come with synthetic oil from the factory then? Never heard of any issues with these vehicles motors...
# Acura RDX
# Aston Martin
# All Bentley Vehicles
# All Cadillac Vehicles
# Chevrolet Corvette C6 and Z06
# Chevrolet TrailBlazer SS
# Chrysler 300C SRT-8
# Cobalt SS S/C Coupe
# Dodge Caliber SRT-4, Charger SRT-8, and Magnum SRT-8
# Jeep Cherokee SRT-8
# Mercedes-Benz AMG Vehicles
# Mercedes SLR
# Mitsubishi Evolution
# Pontiac Solstice GXP
# All Porsche Vehicles
# Saturn Ion Red Line and Saturn Sky Red Line
# Viper SRT-10
I have to ask the question why do many new vehicles come with synthetic oil from the factory then? Never heard of any issues with these vehicles motors...
That's a good question! Maybe they break the engines in some how before they fill them up with synthetic oil and install them in the cars? Or maybe the whole wait till the engine is broke in thing is just nonsense? I sure don't know the answer.
Matt
__________________ 07 FJ Cruiser 4wd Automatic / Black Diamond 02 Suzuki SV650S / Blue
I read somewhere, maybe in a related post, that the engine breakin period is really not a big deal with modern engines. Everything is so precisely machined and assembled that there isn't much breaking it to do. I would imagine that this is the reason the cars you listed come with synthetic. The FJ came with regular oil, so that is what I ran for the first 5,000mi. Then I switched to full synthetic everything. My rear diff fluid was perfectly clean at 7,000mi which surprised me because of everything I read on here about the black rear diff fluid.
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In the fell clutch of circumstance
I have not winced nor cried aloud.
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I have to ask the question why do many new vehicles come with synthetic oil from the factory then? Never heard of any issues with these vehicles motors...
# Acura RDX
# Aston Martin
# All Bentley Vehicles
# All Cadillac Vehicles
# Chevrolet Corvette C6 and Z06
# Chevrolet TrailBlazer SS
# Chrysler 300C SRT-8
# Cobalt SS S/C Coupe
# Dodge Caliber SRT-4, Charger SRT-8, and Magnum SRT-8
# Jeep Cherokee SRT-8
# Mercedes-Benz AMG Vehicles
# Mercedes SLR
# Mitsubishi Evolution
# Pontiac Solstice GXP
# All Porsche Vehicles
# Saturn Ion Red Line and Saturn Sky Red Line
# Viper SRT-10
haha, yeah, my Corvette came with synthetic, and lemme tell ya, it wasnt lacking in horsepower!
2007 FJ, 5AT, Sun Fusion Yellow, CQ, UP, GY, RB, 2Q, EL, VS.
"Enjoying the Journey"
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