Oil change...which is the best?

[m3f_badgtho_2cb87af10e]

good decision.. (i hope i'm reputable) i have the best of luck with it. to save some money, valvoline and NAPA (rebottled valvoline) come in that weight in sythetic. the difference cold between that and 10 30 at start up is minimal, but the higher number is the key to protection.

[m3f_emfollin]

I think I'm going to stick with Mobil 1. I have used that in most of my vehicles and just have always liked it.

[m3f_legrena_59da18ca6a]

Ok. Then how come in the service (Army, etc.) vehicles have "oil analyses" performed on the oil? The oil is only changed when the lab indicates a necessity to do so resulting from unmanageable breakdown of the oil - synthetic or not.



Personally, I run Mobil 1 0W-40. A fully synthetic motor oil, Mobil 1 0W-40 with SuperSyn Technology exceeds industry standards and the major leading builder requirements, enabling the product to keep performing well after conventional oils cannot. Mobil 1 is recommended by leading car manufacturers as initial fill.

[m3f_spez7_147badfdb2]

Royal Purple full syn 15W40.



I hear royal purple is supposed to give about ~10 hp..anyone else heard this?

[m3f_badgtho_2cb87af10e]

i have heard the hp myth .. but the example was a 500 hp big block.

[m3f_emfollin]

Where do you guys get your oil filter?

[m3f_badgtho_2cb87af10e]

Napa.... i use Napa Gold.. its made by wix. IMO either that or Mann is the best, Mann can be hard to find.

[m3f_Steve]

Ok. Then how come in the service (Army, etc.) vehicles have "oil analyses" performed on the oil? The oil is only changed when the lab indicates a necessity to do so resulting from unmanageable breakdown of the oil - synthetic or not.



For large fleets of vehicles, oil analysis is the way to go because you can minimize wasting oil that is still within specification. For your typical car owner, however, oil analysis is not convenient and the cost of doing the oil analysis is comparable to simply changing your oil at predetermined intervals.

[m3f_SIDEWAYS_78bada9b0e]

i can speak from experience that Mobil 1 15W50 made a HUGE difference for my car, even out here in mild So Cali...i used to run Castrol Syntec 10W30, but at track events (or even during spirited drives thru the local canyons) this stuff would thin out so much my car would be starving for oil (very loud lifter ticking) before i even finish my first 20 minute run session! for my last track event, i ran the Mobil 1 syn oil, and it held fast for 4 run sessions without a single tick...then finally in the 5th and last run of the afternoon (track temp was up to 115 degrees!), it finally gave out and the lifter tick came back...but i was still quite pleased. originally i was going to get Royal Purple 15W50, but they ran out, so i got the Mobil 1...i may try the Royal Purple next time however just to compare

[m3f_Chucky]

I run the amsoil "european blend" I think its the 15w-40. No noticeable hp difference, but what I'm wondering is how often should a full synthetic oil be changed out? I know some of the amsoils are rated for up to 24k miles. I was thinking closer to 10k-15k.

[m3f_SJC'sM3]

Where do you guys get your oil filter?



I've purchased Mahle oil filters from partsandaccessories.com for under $7 each and free shipping, but maybe there are other sites that are better.



http://pa.partsandaccessories.com/parts/partsandaccessories/wizard.jsp?year=1995&make=BM&model=M3--002&category=A&part=Oil+Filter+Kit

[m3f_emfollin]

I run the amsoil "european blend" I think its the 15w-40. No noticeable hp difference, but what I'm wondering is how often should a full synthetic oil be changed out? I know some of the amsoils are rated for up to 24k miles. I was thinking closer to 10k-15k.



I would not leave oil in a car like an M3 for 15k miles. I would do like half that, every 7500.

[m3f_parkeryo_faefe3fedc]

i can speak from experience that Mobil 1 15W50 made a HUGE difference for my car, even out here in mild So Cali...





Are you talking about Mobil 1 15w50 full synthetic?

[m3f_emfollin]

I don't think there is a Napa in my area so I went to Advanced Auto Parts and they gave me a Purolive filter...or something like that, I forget what it actually is, it is out in my car. Should I get another brand or will that one be fine?

[m3f_badgtho_2cb87af10e]

purolator.. its decent, not great.. i'm sure it will be fine this time.