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View Full Version : is strictly neccesary change the oil filter evry oil change?


jesbel
02-20-2007, 03:48 AM
Hi! I've been reading owner's manual and i've seen oil filter must be changed every three oil changes... My question is if this could be too much miles to the oil filter, and the old oil could mixing with the new ones...

What is the better solution for this issue?, Every oil change, filter change?...

Thanks for your attencion!!.

DreKat
02-20-2007, 06:38 AM
I replace mine every 2 oil changes

brooder
02-20-2007, 06:56 AM
Unless you empty the oil cooler, drop the oil pan, and a few other things, you're never going to get 100% of the oil out anyway. I think it's something like 75% with a normal oil change. The OEM filters are designed to provide optimal protection for 3 changes.

chinto
02-20-2007, 08:17 AM
i change mine every time. Next time you do an oil change, cut open your filter and you'll see why.

steves
02-20-2007, 08:42 AM
I think the Suzuki OEM filters are rated to last 2 oil changes between replacement. The reason being that after a certain point, the filtration elements in the filter get full, or clogged, and no longer effectivly remove the contaiminants from the oil.

If Suzuki says every other oil change, you can probably bet the bank that's the correct replacement interval...

Changing it more often certainly won't hurt anything....

readymedic
02-20-2007, 09:31 AM
Its best to chang the filter when you change the oil.
CHINTO is so right!!!! Look inside one. Plus the oil filter actually gains weight from the contaminants going through. There. If nothing else, thinks its a weight issue!!

MXG286
02-20-2007, 09:40 AM
The oil filter is maybe 4.50 from pep boys and maybe 9 at the most oem. It doest take any longer to replace it then 3 minutes tops. The oil in your bike is the only thing preventing it from overheating and seizing. There is no coolant. I dont care what any manual says its a no brainer to replace it every time. Just incase something clogs the filter. And thats comming from me and Im cheap. :

brooder
02-20-2007, 10:01 AM
From the Suzuki Factory service manual, not the manual that comes with the bike:

http://darkveil.net/images/untitled.GIF

As long as you're using an OEM filter, why change? if you read through some of CyberPoet's site, you'll find a reason to change more frequently (What You Really Need to Know (http://www.motorcycleanchor.com/motorcycle/how_to/mc_oil.html#WYRNTK)).

The CyberPoet
02-20-2007, 05:03 PM
The specification for the 98+, as shown above, is every 3rd oil change requires a filter change, provided you are using the OEM filter (does not apply to any other brand; contact the manufacturer of any aftermarket filters to get their take). While this is common practice in much of the EU (most of Europe), where filters literally get recycled (and thus adding to the cost of the filters), it's not a common practice in the USA.

I change my filter (OEM) every single time unless I'm on the road doing a road-trip (in which case, I've been known to push it to double the standard oil change interval).

PS - I sell the OEM filters for $8.50 each. At that price, is it worth it to potentially push it?

Cheers,
=-= The CyberPoet

katman05
02-20-2007, 07:29 PM
I use Suzuki OEM filters and change it every 2nd oil change.

KatanaSoldier
02-20-2007, 08:44 PM
I change mine with every oil change with OEM.

StevieB
02-21-2007, 08:39 AM
A few points to consider:

Suzuki wants to support their dealers in any way then can, esp. if it does not cost Suzuki money. Suzi also wants to sell as many parts as they can. Therefore, if Suzi says you can do fine with changing oil filter every 3rd oil change, you can beleive them- otherwise, they would be using every oil change as an opportunity to sell another part. (Hope you can follow my logic there, it's sound but not well put, I am afraid.)

Sure, your filter will have junk in it when you cut it open- that's it's job. Until it get's clogged (which is actually not as big a problem as you might think- oil filters have by-pass valves that open if the filter gets clogged), it is still working. Now, if you cut one open and it has NO junk in it, you've either got a motor that is showing zero wear (powertrain engineers the world over would love to get their hands on it, too) or you've got a problem...

TOTAL capacity of an oil filter is actually very little- stood on it's end, you might be able to get it to hold a half-pint, installed, at least half of that will flow out of it, anyway. So, we are talking, what, 4 ounzes? A literal drop in the bucket.

Perhaps the once-in-three is there to give you some peace of mind if you are traveling and change the oil on the road, like Cyber mentions he sometimes does. There are more important things to worry about.

Auto manufaturers recommend an oil change (often filter, too) every 3000 miles, too, but some folks who know what they are talking about (Klick and Klack, from Car Talk, come to mind- sure, they are funny, but they know their stuff, too) have stated that you can easily go double that. My personal experience is that has some merit- 300,000 miles on my Ford Ranger with oil changes every 6000 miles (and one or two I missed and went 10,000 or so,) with no lubrication-related failure, for instance. Motorcycles may be similar. Savings, you ask? Over 300,000 miles:

300,000 miles / oil change every 3000 miles = 100 oil changes.

300,000 miles / oil change every 6000 miles = 50 oil changes.

50 oil changes * $20 per change = $1000

Nothing to sneeze at.

jesbel
02-21-2007, 12:55 PM
I think SteveB has said the key of the question. If Suzuki Japan thinks it isn't neccesary change oil filters every time, it must be enough for us...

They aren't in bussines for lose money, i think!!.

The CyberPoet
02-21-2007, 06:14 PM
My personal experience is that has some merit- 300,000 miles on my Ford Ranger with oil changes every 6000 miles (and one or two I missed and went 10,000 or so,) with no lubrication-related failure, for instance. Motorcycles may be similar.

While I would tend to agree that for water-cooled engines without the tranny in the oil, the same may hold true, but the duty cycle for a typical air-oil cooled engine with an oil-bathed tranny & clutch is much harsher on the oil in terms of viscosity breakdown (both heat & mechanical shearing). So, while I can easily see pushing the oil filter interval to Suzuki's recommendation as being OK (every third change except for the 600 mile service), I definitely can't readily endorse the idea of pushing the oil change interval upwards by any significant margin for most riders.

Cheers,
=-= The CyberPoet

fordfurious
02-21-2007, 08:04 PM
i change mine every time and less risk taken therefore whether it hurts the bike or not.

do you only change your underwear every 2nd or 3rd time you take a shower

think about it, not really much different

The CyberPoet
02-21-2007, 08:08 PM
do you only change your underwear every 2nd or 3rd time you take a shower

:lmao

Cheers,
=-= The CyberPoet

KatanaSoldier
02-21-2007, 08:28 PM
i change mine every time and less risk taken therefore whether it hurts the bike or not.

do you only change your underwear every 2nd or 3rd time you take a shower

think about it, not really much different


Only on deployments :-D

FloridaKat
02-21-2007, 09:22 PM
$8.50 is cheap insurance for the OEM filter.

Removing potentially harmful particulates is a good thing; the filter helps with that (I am not sure what the minimum size of particulates the Suzuki OEM filter claims to capture).

Does anyone know if Suzuki or an independent lab has a filtration rating based on particle sizes?

I am thinking something akin to a distrubtion plot.

Example:

10-15% <40 microns
40-60% 40-60 microns
20-30% 60-100 microns

The CyberPoet
02-21-2007, 09:36 PM
Does anyone know if Suzuki or an independent lab has a filtration rating based on particle sizes?

No clue, but I'd imagine the filtration size would actually improve as more pores get clogged. You could always contact the manufacturer directly -- Toyo Roki (http://www.toyoroki.co.jp/e/products/pro01.html) makes Suzuki's oil filters for them (as well as all of the other Japanese Big 4 as far as I know).

Cheers,
=-= The CyberPoet

Black_Kat23
02-21-2007, 11:48 PM
I change mine every time.