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Discussion Starter #1
Question: Why does my 09 Outlook 3.6L DI LLT engine take conventional oil, while my 08 Cadillac CTS 3.6L DI LLT engine take synthetic only? They are essentially the same engine. Thoughts??
 

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Do you know if its the LLT or the LY7 in there?

Wikipedia is showing this---- though my be a mistake?

LY7
2008–2009 Cadillac CTS 263 hp (196 kW) @ 6200 rpm 253 lb·ft (343 N·m) @ 3100 rpm
LLT
2008–2011 Cadillac CTS 304 hp (227 kW) @ 6400 rpm 273 lb·ft (370 N·m) @ 5200 rpm



though it is interesting that the older one calls for full syn.
 

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Discussion Starter #3
rbarrios said:
Do you know if its the LLT or the LY7 in there?

Wikipedia is showing this---- though my be a mistake?

LY7
2008–2009 Cadillac CTS 263 hp (196 kW) @ 6200 rpm 253 lb·ft (343 N·m) @ 3100 rpm
LLT
2008–2011 Cadillac CTS 304 hp (227 kW) @ 6400 rpm 273 lb·ft (370 N·m) @ 5200 rpm



though it is interesting that the older one calls for full syn.
Did you read my post? Both engines are the LLT.
 

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You bought a Cadillac and you would want to treat it to full synthetic. :thumb:
Treat the Saturn to full synthetic as well. ;)
 
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