SuzukiSavage.com - I changed my oil.

norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	I changed my oil. 10/05/18 at 16:31:58 I changed the oil. I have been using Mobil 1 10x40 synthetic in my Savage. When I changed the oil to Rotella 5x40 synthetic the RPM dropped 200 RPM from an indicated 1800 to 1600 RPM.?? Any comments. I accept the fact that my Tach. may not be spot on but it seems odd.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: I changed my oil. Reply #1 - 10/05/18 at 16:50:26 5x40 ? Sure that's not 15/40?
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norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	Re: I changed my oil. Reply #2 - 10/05/18 at 21:30:58 Justin, No. It is Rotella 5x40 synthetic T6 CK4. It seems strange even if the tach. is off a bit which I suspect.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: I changed my oil. Reply #3 - 10/05/18 at 22:11:14 You should put the old oil back and see what happens.
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Gary_in_NJ Serious Thumper Offline LS650 Cafe Racer Posts: 2629 Amongst the Twisty Roads	Re: I changed my oil. Reply #4 - 10/06/18 at 07:05:57 Probably unrelated. Just thinking out load...I'd confirm the amount of oil in the system. Too much oil, or the wrong filter, would increase pumping losses.
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norm92de

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Re: I changed my oil.
Reply #5 - 10/06/18 at 08:15:57

I thought about oil quantity but I put in two quarts and used a Suzuki filter just like the previous one. The oil level was normal before draining.

I will be riding tomorrow morning so I can se if it remains the same. It has always consistently shown around 1800 RPM which is probably indicating a bit optimistically but it doesn't sound high. Atmospheric pressure is the only other variable I can think of.

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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.

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norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	Re: I changed my oil. Reply #6 - 10/06/18 at 08:22:12 Justin, I am willing to invest in a couple of quarts of Mobil just to prove a point. It only takes a little while to drain and refill. I can reuse the new filter. Very puzzling?
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: I changed my oil. Reply #7 - 10/06/18 at 10:08:12 I was kidding. You'll never know for sure what happened, because the experiment can't be repeated. The oil and filter are gone. I would be happy as long as it's running right and in no danger due to low oil pressure, etc.
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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: I changed my oil. Reply #8 - 10/06/18 at 10:23:37 Did the Mobil oil contain moly ? Your 1800 rpm idle is a bit high anyway.
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norm92de

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Re: I changed my oil.
Reply #9 - 10/06/18 at 10:39:05

I'll admit to being OCD. BTW I would love to know the actual oil pressure.

Anyway, I will change back to Mobil to see if it makes a change. I am almost certain that the old oil was not contaminated with gas since I run the engine dry when I park the bike at home and almost never park anywhere else. If I did I would still turn off the fuel.

I wonder what happens to oil after 3000 miles in an engine?

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norm92de

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Re: I changed my oil.
Reply #10 - 10/06/18 at 10:50:11

Batman,
I don't think it contains Moly it is certainly approved for wet clutches JASO etc.

I suspect that after 3000 miles the viscosity had changed a bit. Who knows? Both filters were Genuine Suzuki so should have generated the same back pressure.

The engine sounds very nice at that indicated RPM. At least she never complained to me.

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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.

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