Switched to syn after 200K...

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1,310
Location
Scottsdale, AZ
Someone posted on a Toyota 4x4 forum that he switched to synthetic after 200K and now he says puffs of white smoke are coming out the tailpipe. Whats happening here?
 

Patman

Staff member
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21,989
Location
Oakville, Ontario
White smoke is indicative of coolant getting into the combustion chamber, so he probably has a head gasket leak. It's totally unrelated to the switchover. I'd never switch over a 200k car to synthetic though. After that long, you might as well just stick to dino oil and avoid any potential leaks.
 
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