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I'm sure I'm opening a can of worms here, but what kind of oil are you running in your bikes? So far I've just bought my oil from Suzuki and its not expensive, but I'm curious to see what others are running.
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I run Castrol 20/50.
And away we go...................................1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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Castrol 20W50 and I change it every four months (approx 1000-miles)Comment
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Penzoil 10-40Gustov
80 GS 1100 LT, 83 1100 G "Scruffy"
81 GS 1000 G
79 GS 850 G
81 GS 850 L
83 GS 550 ES, 85 GS 550 ES
80 GS 550 L
86 450 Rebel, 70CL 70, Yamaha TTR125
2002 Honda 919
2004 Ural Gear upComment
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Castrol 20/501983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100Comment
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amsoil 20w50, shell rotella 15w40, shell rotella synthetic 5w40...Comment
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Federated 10/40, It was on sale
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Fleet Farm 10w40, same as I run in my Jeep.:-D Oil changed every 1500 miles, oil & filter every 3000, which is what my Haynes manual recommends.Comment
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15w/40 diesel engine oil is a good choice as long as the temps are not too cold. I run 5W/40 Rotella synthetic in my 550 because it's my baby and I like to waste money on it.
Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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Oils Well...
Just a couple of weeks ago, I wrote Castrol a letter concerning the elimination of 'zinc' in many motor oils. They sent me a list of their oils that still have a reasonable zinc content, if I can find it I will post it.
Personally, I use 15w40 Diesel oil (your brand) because it does have the higher zinc to reduce wear from scuffing and does not have any additives that are detrimental to clutch function.
You absolutely do NOT want to run any oil that has the words "Energy Saving" or the "star" logo on the bottle, those oils are intended for late model cars that all have "roller valve lifters" and have NO zinc to protect older engines sliding metal parts. The cam and lifters on our Suzukis are the "sliding metal to metal" type.
Here is a good link...
Enjoy, BruceComment
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Quaker State non-detergent 30 weight. I change it every 5 years even if it doesn't need it.
HapComment
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Castrol 10W40, except for the hottest part of the summer when I might use a 20W50. I use the lighter 10W40 to help ensure the oil flows easier after starting a cold engine. Plus that's what's recommended in my owners manual.
I also change oil after about 2,000 milesComment
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Rotella 15w-40, seems to work good in all my vehicles.Comment
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Rotella synthetic 5W40, available at Walmart.Comment
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Castrol GTX 10-40. I'm going to use 20-50 this summer. Hot here in CA.
Dan
1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/Comment
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