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CX500 & CX650 Turbo Forum
Started by tacoma at 02-18-2010 3:44 AM. Topic has 18 replies.
  
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 02-18-2010, 3:44 AM
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tacoma
Joined on 09-03-2009
York PA
Posts 22
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what is a good engine oil brand and weight to use in a cx500 turbo?
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02-18-2010, 4:40 AM
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Silverado 6x6
 
Joined on 08-13-2009
Wasilla, Alaska
Posts 440
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You really want the best of the best of the best?
Just wait and see what happens to this thread, its an oil thread, thats like a yellow porch light to insects.
First off turbos are hard on oil so look at using synthetics. Then figure your budget, arguably Amsoil 10-40 motorcycle oil will not let you down.
If you want an oil thats available almost anywhere and will without a question do the job then my suggestion is Rotella T 5-40 synthetic, or Mobil 1 Truck and Turbo Diesel.
Here is a link for some technical explanations so it won't appear like I'm showing favoritism.
http://motorcycleinfo.calsci.com/Consumables.aspx#Oil
1980 CX 500 Deluxe with Vetter Vindicator
Electric Fan conversion
LED lamp conversion
Bridgestone Spitfires
New Ricks Motorsports stator
H4 HID headlamp
2009 Yamaha V-Star 1300 Tourer
New stuff being added every day.
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02-18-2010, 5:17 AM
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CXTURBOBOOST
Joined on 05-02-2007
Lincoln, NE
Posts 440
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Mobil 1 motorcycle oil....MX4T
Pete
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02-18-2010, 8:31 AM
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Timothy_D
Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
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If the bike has been running mineral oil its whole life, you'll want to work your way to full synth.
I recommend two oil changes with semi-synth before going to full synthetic.
Personally, I like Repsol, but my fiancee, who has worked with professional racers recommends Motul 4T.
CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.
Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.
Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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02-18-2010, 5:45 PM
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tacoma
Joined on 09-03-2009
York PA
Posts 22
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why would it matter if i switch to synthetic? i have heard also that you cant switch back from synthetics. why? is the rotella deisel oil ok to use with a wet clutch? i have heard of clutch failures from synthetic that are not for motorcycles. i have used spectro oil in the past and liked it but with the abuse the turbo gives the oil soulds like a mobil1 is a favorite
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02-18-2010, 6:38 PM
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George in Indiana
Joined on 03-03-2006
Posts 954
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I use Rotella T synthetic in all my bikes. Synthetic won't hurt your clutch as long as it's not energy conserving. I don't believe an xW40 oil exists that's energy conserving so it's a moot point.
You can throw synthetic in, switch back to dino or mix it together. Doesn't matter. It's not a living organism that's going to get an upset stomach if you don't wean it or suddenly change its diet.
There's plenty of good oil out there and as long as you pick a good name brand you'll be fine.
CX500 TURBO
CX650 TURBO
'04 GSX1300R Hayabusa
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02-18-2010, 7:57 PM
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mr. softie
Joined on 03-14-2009
Beautiful Bucks County PA... I ride a 83 GL650I
Posts 663
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I have been using Rotella diesel oil (dino) until the latest change. I have switched to Mobil 1. Bike runs a bit smoother and quieter, and the fuel economy seems to have increased very slightly. My idle used to clatter a bit, sounds like a sewing machine now. I'm sold on the full synthetic, though I am a late convert. I was influenced by an article I read outlining the viscosity breakdown of various oils in a motorcycle engine. The Mobile 1 maintained its viscosity far longer than any of the dino based oils, including my precious Rotella. The gears in the transmission are hard on whatever oil you use, but the full synthetics seem to last longer and break down more slowly. The clutch has not slipped yet on my GL650I from using the Mobil 1.
May the wind always be at your back and the sun overhead as you make your way down the ever winding, smoothly paved, traffic free road!
Si fractum non sit, noli id reficere.
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02-19-2010, 7:46 AM
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CXTURBOBOOST
Joined on 05-02-2007
Lincoln, NE
Posts 440
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One more time.....
Mobil 1 Racing 4T 10W-40
Trust me... I've owned the CXT new since 82 and nothing runs as smooth in the bike, and you can read on how it holds up via independent researchers. Don't read what the OEM's tell you, read the independents such as college studies.
Full synthetic change won't hurt anything. I've done it on a ton of CXT's. No oil consumption problems what-so-ever. Just a big thank you from the turbocharger bearings!
Also--That long pull between first and second gear that I used to miss every now and then....I no longer miss it. Shifts much smoother. (No---I'm not an idiot and I do know how to properly shift a MC. I've just found the 1-2 in the CXT seems to miss into neutral on some bikes frequently as did our original. With the 4T oil, all is smooth and nice :))
Pete
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02-19-2010, 8:15 AM
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Timothy_D
Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
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The theory behind using a semi-synthetic before going to full synthetic is to allow the metals to "adapt" to the new oil.
Pete is absolutely correct in the better performance.
When I ran mineral oil, my 500T used to go into default mode after several very high speed, high boost runs.
As soon as I went to the Repsol semi-synth, it immediately stopped, and further, boost came on quicker.
CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.
Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.
Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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02-19-2010, 10:36 PM
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Don in Oz
Joined on 03-10-2006
Melbourne, Australia
Posts 546
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So how do you explain "not going into default mode" now that you're using synthetic oil? Not getting as much boost as you used to get on dinosaur oil? What has changed? Turbo charger not getting up to the same spindle speed on synthetic oil as on dino. oil? Turbo spindle having more inertia to overboost on throttle shut-off?
Don.
GL500I, CX500TC (2), CX500EC (2), 1982 CX500C.
GL1000, 1976 CB550F, CT110 (2), XL125S (2), 1973 CB175K6.
Kwaka Z250C1 (2).
Suzuki GS450SX, DR250SJ, GS125ESD.
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02-20-2010, 1:15 PM
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Timothy_D
Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
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I don't know how to explain it, I just know that it happened.
Even after the mouse milk, I occasionally had overboost issues.
Ever since I switched, I have never had one again. The only change I made was switching to the Repsol.
CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.
Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.
Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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02-22-2010, 6:57 AM
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Karsten
Joined on 03-19-2009
Dublin, Ireland
Posts 129
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Oilthread!
Oilthread!
100 Turbo owners - 200 opinions.
I prefer turbo diesel oils with the original weight.
Turbo-diesel oils carry more zinc to neutralize those pesky acids. Should be nicer to your generator, too.
Fully synthetic or part or mineral?
Go for wht you like, but if the bike has only seen mineral in it's earlier life, you want to do an oil and filter change to synth, then after 500 miles do another change - check the oil and filter, if there is a lot of muck in the filter, do another change after another 500 miles. Then the engine should have cleaned itself of all the sludge that fully synth oils wash off the surfaces.
Some say, that using synth oils, you could stretch oil change intervals by 50%, but I won't stand for that!
Wot acids?
Compare the fuel we burn today with the fuel we've had in the 80's and ... well, in the 80's, when you've put some fuel on a saucer and let it evaporate, all you've got left were some crystallic residues. Do that with the fuel of today and you'll get a sludge-like residue that won't burn at all. It's because our fuel tuday contains much more additives and is made using completely different processes. Ask other vintage car/motorbike owners about steel tank corrosion. Or, should you live in an area with "streched" or "bio" fuels about ethanol related metal corrosion. Avoid that ethanol/biosh*t like the plague! Same with the oil, but IMHO as much as fuel became worse over time, oil got better. So, in THEORY evey single oil out there today should be leaps and bounds above the oils from the 80's, but then again .. YMMV.
GL500i - 1981
CX500TC - 1983
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06-19-2010, 8:50 PM
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BillRod
Joined on 11-09-2009
Richton Park, IL 33 miles SW of Chicago
Posts 350
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I find it interesting that Amsoil has paid mucho dollars to have their oils, and their competitors oils tested and compared, both dino and synthetic. They have then posted the results which you can find on the internet. It sure makes the other manufacturers products look less than satisfactory. I also find it interesting, in our sue, sue, sue, world that we live in, that Amsoil has never been sued. That takes guts to post information like that unless you can back up your information and claims. They obviously make the best synthetic products and your bike deserves only the best. They have a motorcycle specific synthetic that also contains zinc. BillRod
71 years old (April 1939)
Richton Park, Illinois
Just bought 1982 GL500 Naked 13,000 miles
Never worry about theory as long as the machinery does what it is supposed to do.
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06-20-2010, 10:07 AM
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George in Indiana
Joined on 03-03-2006
Posts 954
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 BillRod wrote: | I find it interesting that Amsoil has paid mucho dollars to have their oils, and their competitors oils tested and compared, both dino and synthetic. They have then posted the results which you can find on the internet. It sure makes the other manufacturers products look less than satisfactory. I also find it interesting, in our sue, sue, sue, world that we live in, that Amsoil has never been sued. That takes guts to post information like that unless you can back up your information and claims. They obviously make the best synthetic products and your bike deserves only the best. They have a motorcycle specific synthetic that also contains zinc. BillRod
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Here's my take on Amsoil:
Out of all their oils they recently added one (their red headed stepchild) that is API certified and it's for those who are silly enough to worry about API ratings and new vehicle warranties.
"Our
XL-7500 oils
are the oils of choice in
the retail oil change
market, and primarily
because of warranty concerns
the customers
in this market
require API-certified
oils."
Now in their advertising they use cover your ass, lawyer type wording which in my opinion makes their MAIN oils sound API certified. If the API is such a joke to them, why do they use it over and over in their website? "Recommended for vehicles requiring API xx/xx." or "Performance specifications include API xx." Nothing about those oils being API certified, just trick wording....I bet I can sell a bottle of pig piss that way and still be legally covered.
Dig deeper into their site and it gets better:
"Another common misconception is that motor oils must be
API certified in order to meet warranty requirements. The
fact is, lubricants are not required to be certified by the API,
only meet or exceed API specifications."
Yep, so now when you have an internal engine failure on a newer car or motorcycle which is still under warranty what do you tell the dealer?
Amsoil said it meets or exceeds the API requirements stated in my manual?
When the dealer says prove it, then what? Will they believe the tests from some basically unknown oil dealer? Oil that wasn't bought in a store but out of some guy's trunk in a parking lot like a drug deal?
I also like how they need a big warranty sales flier to defend their product:
http://www.amsoil.com/lit/g2488.pdf
Lastly why is it that I can't find their products at places like NAPA, Autozone or Walmart? I love the locate a nearest dealer search function on their website. All the "dealers" around me are individual names of people with yahoo and hotmail addresses. And when oil threads pop up, those pimping Amsoil are almost ALWAYS one of those car trunk dealers.
Sorry, but I'll stick with name brands that don't use clever double talk and need a book's worth of info to defend their product.
CX500 TURBO
CX650 TURBO
'04 GSX1300R Hayabusa
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06-20-2010, 10:33 AM
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Turboaddict
Joined on 07-16-2008
Posts 59
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Yah, you gotta love the oil threads !!!!
My two cents. Just did a stator and mech seal job and decided to try out Mobil 1 Motorcycle...
I was worried at first because of clutch slipping, but figured that was because I had just put the bike back together. I was able to adjust the clutch cable and no more worries. I too notice the difference in sound, just seems to run better, shifts well, I'm sold !
CX500TC 25K miles
Very happy with his recent (April 2010) successful stator/mech seal replacement accomplishment !
"Got Boost?"
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06-20-2010, 10:42 AM
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Cobram
Joined on 06-23-2007
Boston, MA
Posts 1,547
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A automotive mailing list I belonged to made a separate forum just for oil discussion to keep the volume down on the main list.
1978 CX500 - I live on a one-way street that's also a dead end. I'm not sure how I got here, or how I'm going to get out.
Four wheels move the body; Two wheels move the Soul.
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06-20-2010, 11:22 AM
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CXTURBOBOOST
Joined on 05-02-2007
Lincoln, NE
Posts 440
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Mobil MX4T is awesome.... Your CXT will love you!
Pete
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06-20-2010, 11:37 AM
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Cobram
Joined on 06-23-2007
Boston, MA
Posts 1,547
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| CXTURBOBOOST wrote: | | Mobil MX4T is awesome.... Your CXT will love you!
Pete |
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It's been renamed, it's now called Mobil 1 Racing 4T 10W-40 in the US. It's always been called that outside the US market.
1978 CX500 - I live on a one-way street that's also a dead end. I'm not sure how I got here, or how I'm going to get out.
Four wheels move the body; Two wheels move the Soul.
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06-20-2010, 2:20 PM
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CXTURBOBOOST
Joined on 05-02-2007
Lincoln, NE
Posts 440
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Whatever it's called... Use it... Clutch is awesome....Oil looks great even after 1000 miles...
PK
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Honda CX500 & G... » CX500 GL500 Tra... » CX500 & CX650 T... » Engine oil ?
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