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best oil to use?
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Old 26 Feb 2013, 02:40 AM   #1 (permalink)
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best oil to use?

I have noticed my local dealer was putting in 5W40 Fully Synthetic Oil, however I have since changed to another dealer who only uses Semi Synthetic Oil.

Both are Subaru dealers, I have a 2007 Subaru Impreza with 150,000km on the clock.

Is there any benefit to fully synthetic. The new dealer charges an extra $35 for fully synthetic oil.
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Old 26 Feb 2013, 05:15 AM   #2 (permalink)
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Re: best oil to use?

fully synth is better over a longer period but if honest semi wont kill your engine,
if you change it regular then id say save 35 quid a time and use semi,
id be tempted to use 10W over 5W though but thats another discussion.
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Old 17 Mar 2013, 11:33 AM   #3 (permalink)
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Re: best oil to use?

I only use 5w40 fully synthetic for my hawk. This has been recommended by subaru, my mechanic, opie oils and camskill. Use whats recommended. You could save some bucks and do it yourself, don't compromise on cheaper products.

Last edited by preza; 17 Mar 2013 at 11:37 AM.
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Old 17 Mar 2013, 02:42 PM   #4 (permalink)
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Re: best oil to use?

Quote:
Originally Posted by preza View Post
I only use 5w40 fully synthetic for my hawk. This has been recommended by subaru, my mechanic, opie oils and camskill. Use whats recommended. You could save some bucks and do it yourself, don't compromise on cheaper products.
like I said the 10w / 5w is another discussion, over on scabby net there was a big thread on it, API and Opie had words,
I trust API over Opie all day long.
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