Questions about oil change parts and fluids.

[quote author=rotus8 link=topic=73844.msg1316644#msg1316644 date=1175882838]
If you have a Speed, you must use 5w30. The NA engines use 5w20.
[/quote]

yes, I just picked up my speed3. build date feb 07, manual covers both NA and turbo and says 5w20 for NA, 5w30 for turbo.

they should really update the website, or decide which is correct. it takes 2 seconds to update a web file.
I heard dealers in canada were saying 5w30 in summer, 5w20 in winter. 5w30 is becoming a new standard in cars because of strict mpg pressure from government agencies. actually, cars like the honda fit are now stripping out safety features, to reduce weight so that they can be eligible for federal rebates for good mpg rating.
5w30 will protect better, but give slightly less mpg. take your pic.

PS you would think the web version is the more uptodate....but logic here points to 5w30.

[quote author=jasno999 link=topic=73844.msg1395532#msg1395532 date=1178670360]
The discussion between synthetic and regular oils is out of control. Basically one is man made and does nto break down as easy so you can typically get longer use out of it. But as for the people that say using synthetic is bad cause it causes leaks or does bad thigns - those people are crazy. Why in the world would a synthetic leak and a regular oil not leak???? They are both the same in terms of viscosity.....


Really in most cases I don't htink it matters. If you follow proper procedure either oil will do the job. However if oyu want to go longer between changes or if you plan to have the engine for 100K+ miles or if oyu plan to overhaul the engine at some point I would go with the synthetic and change it at the proper times cause it should give oyu better protection with less build up...
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1/2 these guys at dealers are idiots. the other 1/2 seem to know what they are doing. I went to dealer 1. first guy says 5w20, second 5w30 (looking at me like I am an idiot when he replies) master tech says 5w30....I had 4 guys running around the lot at one point and came to a definitive answer of 5w30.
went to dealer number 2. went through the same process. he said use what is in the manual...I said it doesn't matter what is in my manual if your techs computer says otherwise. came out still being up in the air about the oil weight. btw...it is nowhere on the car. all the guys at the dealer said to check the oil cap...it is not stamped on the cap.