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Discussion Starter #1
will the warranty be affected if i use synthetic oil on my 03 avalon xls?
Chris
 

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PowerHouse Turbo
94 Supra Turbo
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67 Posts
After the engine break-in period, you can use any approved
synthetic oil. Make sure the oil API certified. Certain blends of
Amsoil and Red Line are not API certified oils.

Royal Purple:thumbup:

Jeff Watson
 

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445 Posts
Just stick with Mobil 1 synthetic. Using anything "better" like RP, Redline, or Amsoil is just overkill and a waste of money unless you bring your car to the track alot etc.
 
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