oil change

nicknick · 12-28-2009, 03:06 PM

Quote:

Originally Posted by m4a1mustang

Did you research maintenance costs before you bought the car?

There are a number of people here who have used non-ester synthetic oils that seem to be ok.

"Seem to be ok".. That is the issue. How do these people know if all is ok without tearing down the engine ans using a micrometer etc to determine if all is truly ok. I think Ester oils have a higher heat stability than other synth oils and that iswhy nissan specs them.
BTW, you buy approx 35,000 dollar car and $100 is going to break you? that is stretching the budget?

kannibul · 12-28-2009, 07:50 PM

Quote:

Originally Posted by nicknick

"Seem to be ok".. That is the issue. How do these people know if all is ok without tearing down the engine ans using a micrometer etc to determine if all is truly ok. I think Ester oils have a higher heat stability than other synth oils and that iswhy nissan specs them.
BTW, you buy approx 35,000 dollar car and $100 is going to break you? that is stretching the budget?

No, Nissan spec's *their* special oil, which has esters added, and some nano-carbon particles that they think makes it work better with the coatings on the eccentric shafts, and charges $11-$14/qt for it. Actually, they don't spec it, they recommend but do not require it. Just like Ford will recommend you put in Ford oil (if they still have it)...

Mobil1 is good up to 400F. Our cars are well beyond limp mode at 400F.

m4a1mustang · 12-28-2009, 07:50 PM

Quote:

Originally Posted by nicknick

"Seem to be ok".. That is the issue. How do these people know if all is ok without tearing down the engine ans using a micrometer etc to determine if all is truly ok. I think Ester oils have a higher heat stability than other synth oils and that iswhy nissan specs them.
BTW, you buy approx 35,000 dollar car and $100 is going to break you? that is stretching the budget?

Well, if it wasn't OK Nissan would explicitly state in the owner's manual to only use approved Ester oils. It doesn't, and to my knowledge there are no TSBs recommending only Ester oils.

kannibul · 12-28-2009, 07:53 PM

Quote:

Originally Posted by m4a1mustang

Well, if it wasn't OK Nissan would explicitly state in the owner's manual to only use approved Ester oils. It doesn't, and to my knowledge there are no TSBs recommending only Ester oils.

There is one regarding replacement of the VVEL system components...or maybe it was the ECU - or something to that effect. It requires the techs to remove the customer oil and replace it with Nissan's oil.

That, I'm sure is related to their testing, and establishing a very common foundation between their test environment, and what the mechanic will do - in otherwords, if they don't do it, they can't guarantee the results simply because they haven't tested it with other oils.

Makes sense...from a scientific standpoint.

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