Change your oil!

dre_2ooo · 09-14-2011, 05:05 PM

Just changed my oil, been 6000 miles since last... forgot how much a difference it makes.... *feels* like I freed up 10hp lol.

Go do it now if you're due soon so you can fall in love with your car again!

(Thank you bro, it was a cool story)

SilverII · 09-14-2011, 05:22 PM

i changed it at 1200 then at 7500. Now waiting for 15K change, then will do it at 22.5 and every 7.5K

SomeRandomer123 · 09-14-2011, 06:18 PM

It makes such a difference doesn't it! The '30d just doesn't run quite as sweet as usual when the oil is poor. Love it when its on fresh stuff, its like the day I picked it up

Bmwguy11 · 09-14-2011, 06:36 PM

The human body can't perceive any difference between new oil and 6000 mile oil.

Saintor · 09-14-2011, 07:06 PM

Quote:

Originally Posted by Bmwguy11

The human body can't perceive any difference between new oil and 6000 mile oil.

That's a matter of "I want to believe."

Just let the CBS do its job.

dre_2ooo · 09-14-2011, 07:56 PM

Quote:

Originally Posted by Bmwguy11

The human body can't perceive any difference between new oil and 6000 mile oil.

I would have to disagree. I was certainly surprised... genuinely. I wasn't expecting, consciously, any difference of any kind. I just started driving and noticed the car felt about 100lbs lighter... maybe I lost some weight performing the oil change

nukezero · 09-14-2011, 08:10 PM

old oil becomes more sludgier, thus restricts the movements of the crank, bearings, and piston? Therefore, by that theory, fresh oil is thinner and smoother. Because there is less drag on these moving parts, this gave you +10 HP.

So if you want another 10HP, put in water which has the thinner viscosity than oil.

haha

Chriztofor · 09-14-2011, 08:12 PM

I feel the same way when I wash my car. lol

username604 · 09-14-2011, 08:22 PM

Quote:

Originally Posted by dre_2ooo

I just started driving and noticed the car felt about 100lbs lighter...

ahahaha i have to agree, when i condition the leather seats in my car, it feels like my car has gained a good 50 or so horsepower. i also have this sticker on my back window, and it's good for 20 plus ponies

ctuna · 09-14-2011, 10:08 PM

It runs better.
But I do believe in the 5000 to 7500 mile change I hope it will keep
the dreaded valve ticking away.

tlow98 · 09-14-2011, 10:22 PM

dre- I think you'd feel approximately 700lbs lighter if you got a z35. My wallet would then feel lighter and we'd all feel better.

:-)

username604 · 09-14-2011, 10:29 PM

Quote:

Originally Posted by nukezero

old oil becomes more sludgier, thus restricts the movements of the crank, bearings, and piston? Therefore, by that theory, fresh oil is thinner and smoother. Because there is less drag on these moving parts, this gave you +10 HP.

seriously though, oil's viscosity shouldn't be changing within change intervals.

M340i Pride · 09-14-2011, 10:32 PM

Quote:

Originally Posted by davidkneiber

ahahaha i have to agree, when i condition the leather seats in my car, it feels like my car has gained a good 50 or so horsepower. i also have this sticker on my back window, and it's good for 20 plus ponies

by the way, how fast is your car? did you mod it extensively? since its the world's fastest 08 335i, i wonder what your times are... 0-60 / 1/4 ect. just wondering. thanks.

carlos916 · 09-14-2011, 11:18 PM

dre_2ooo · 09-14-2011, 11:21 PM

Quote:

Originally Posted by tlow98

dre- I think you'd feel approximately 700lbs lighter if you got a z35. My wallet would then feel lighter and we'd all feel better.

:-)

hahah. ya that sux about the z4. oh well. I just dumped $2500 into my car to gain 15% wheel torque instead of a down payment on that z.

ENINTY · 09-15-2011, 05:15 AM

Change the coolant, trans, and diff oils and you'll gain another 30HP. Changing the blinker fluid adds only 3 more HP and is not worth the cost of the special fluid (I don't recommend it).

335BBS · 09-15-2011, 09:17 AM

Quote:

Originally Posted by ENINTY

Change the coolant, trans, and diff oils and you'll gain another 30HP. Changing the blinker fluid adds only 3 more HP and is not worth the cost of the special fluid (I don't recommend it).

Mirror fluid and seat oil.........................................
Its been proven many times that oil change doesnt increase performance that can be felt.

csav330 · 09-15-2011, 11:59 AM

I do mine every 7,500-8,000. About to do a complete fluid change here soon too.

PTinVT · 09-15-2011, 12:23 PM

Quote:

Originally Posted by Saintor

Just let the CBS do its job.

I last changed my oil May 2010, about 10000 miles ago. CBS is saying I don't need to change again until May 2012, 6000 more miles.

Odd how they let me have a free oil change every year under warranty regardless of mileage (and as a result, they gave me two oil changes 1500 miles/4 months apart since the CBS was calling for another one...) but it's OK to let it go 2 years out of warranty?

Having a hard time trusting the CBS here... is modern oil so good that time in use is no longer a factor?

Tom K. · 09-15-2011, 12:47 PM

Quote:

Originally Posted by PTinVT

I last changed my oil May 2010, about 10000 miles ago. CBS is saying I don't need to change again until May 2012, 6000 more miles.

Odd how they let me have a free oil change every year under warranty regardless of mileage (and as a result, they gave me two oil changes 1500 miles/4 months apart since the CBS was calling for another one...) but it's OK to let it go 2 years out of warranty?

Having a hard time trusting the CBS here... is modern oil so good that time in use is no longer a factor?

Do NOT trust the time interval on the computer - the time interval is one year in the US. In the US, they are incorrectly programmed for 2 years - IIRC, the interval for Europe where the gas is better. Since you have not had it changed since May, 2010, you are now a few months overdue for your May, 2011 change.

See the Warranty/Service manual where it specifically states not to exceed a one year interval for oil changes. Whether you are in or out of warranty is irrelevant, except for your out of pocket cost.

Tom

Kolyan2k · 09-15-2011, 12:49 PM

Quote:

Originally Posted by Chriztofor

I feel the same way when I wash my car. lol

its actually a pretty good fact that after carwash your car would be faster

after all you washing off extra weight

PTinVT · 09-15-2011, 01:01 PM

Quote:

Originally Posted by Tom K.

Do NOT trust the time interval on the computer - the time interval is one year in the US. In the US, they are incorrectly programmed for 2 years - IIRC, the interval for Europe where the gas is better. Since you have not had it changed since May, 2010, you are now a few months overdue for your May, 2011 change.

See the Warranty/Service manual where it specifically states not to exceed a one year interval for oil changes. Whether you are in or out of warranty is irrelevant, except for your out of pocket cost.

Tom

That's what I thought. I heard they changed the free annual oil service to every 2 years at one point, then changed it back to one year?

09-14-2011, 05:05 PM	#1
dre_2ooo ... 30 Rep 373 Posts Drives: '14 435i Join Date: May 2010 Location: Minneapolis iTrader: (1)	Change your oil! Just changed my oil, been 6000 miles since last... forgot how much a difference it makes.... *feels* like I freed up 10hp lol. Go do it now if you're due soon so you can fall in love with your car again! (Thank you bro, it was a cool story) Last edited by dre_2ooo; 09-14-2011 at 11:32 PM.. Reason: to bold feels, i know an oil change can't really gain 10hp, duh
	Appreciate 0 Tweet Quote

09-14-2011, 05:22 PM	#2
SilverII Colonel 40 Rep 2,334 Posts Drives: '11 335IS Join Date: Jun 2010 Location: DFW iTrader: (0) Garage List 2011 BMW 335IS [9.66]	i changed it at 1200 then at 7500. Now waiting for 15K change, then will do it at 22.5 and every 7.5K
	Appreciate 0 Quote

09-14-2011, 06:18 PM	#3
SomeRandomer123 Colonel 307 Rep 2,612 Posts Drives: F30 328i Luxury - Sport Auto Join Date: May 2011 Location: Lancashire, North West England, UK iTrader: (0)	It makes such a difference doesn't it! The '30d just doesn't run quite as sweet as usual when the oil is poor. Love it when its on fresh stuff, its like the day I picked it up __________________ Gone: 2006 BMW E60 520d SE 6MT Gone: 2009 BMW E90-LCI 330d SE 6MT Current: 2012 F30 328i Luxury 8AT On Order: 2015 Audi A6 Avant Ultra, Black Edition (sorry!)
	Appreciate 0 Quote

09-14-2011, 06:36 PM	#4
Bmwguy11 Lieutenant Colonel 1252 Rep 1,760 Posts Drives: 2016 YMB M3 Join Date: Aug 2011 Location: Wisconsin iTrader: (1)	The human body can't perceive any difference between new oil and 6000 mile oil.
	Appreciate 0 Quote

09-14-2011, 08:10 PM	#7
nukezero Major 343 Rep 1,465 Posts Drives: BMW 3 series Join Date: Sep 2008 Location: Irvine iTrader: (8)	old oil becomes more sludgier, thus restricts the movements of the crank, bearings, and piston? Therefore, by that theory, fresh oil is thinner and smoother. Because there is less drag on these moving parts, this gave you +10 HP. So if you want another 10HP, put in water which has the thinner viscosity than oil. haha
	Appreciate 0 Quote

09-14-2011, 08:12 PM	#8
Chriztofor Colonel 103 Rep 2,783 Posts Drives: '06 325i and '13 X5 Join Date: Feb 2010 Location: Chicago Burbs iTrader: (1)	I feel the same way when I wash my car. lol __________________ If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
	Appreciate 0 Quote

09-14-2011, 10:08 PM	#10
ctuna Lieutenant General 1915 Rep 13,107 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	I also notice that when I clean my car It runs better. But I do believe in the 5000 to 7500 mile change I hope it will keep the dreaded valve ticking away.
	Appreciate 0 Quote

09-14-2011, 10:22 PM	#11
tlow98 Major General 2190 Rep 5,004 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	dre- I think you'd feel approximately 700lbs lighter if you got a z35. My wallet would then feel lighter and we'd all feel better. :-)
	Appreciate 0 Quote

09-14-2011, 11:18 PM	#14
carlos916 Semper Fi 23 Rep 417 Posts Drives: E60 ///M5 Join Date: Dec 2010 Location: Sacramento iTrader: (1) Garage List 2008 E92 328i [5.00]	__________________
	Appreciate 0 Quote

09-15-2011, 05:15 AM	#16
ENINTY Banned 173 Rep 3,415 Posts Drives: 2006 325i Sport Join Date: Jun 2006 Location: Virginia iTrader: (0)	Change the coolant, trans, and diff oils and you'll gain another 30HP. Changing the blinker fluid adds only 3 more HP and is not worth the cost of the special fluid (I don't recommend it).
	Appreciate 0 Quote

09-15-2011, 11:59 AM	#18
csav330 Private 2 Rep 53 Posts Drives: 330i Join Date: Nov 2010 Location: Madison, WI iTrader: (0)	I do mine every 7,500-8,000. About to do a complete fluid change here soon too.
	Appreciate 0 Quote