20w-50 Dino oil OK for hot weather?

kmrcstintn · 07-08-2014, 05:33 PM

been thinking about using a 20w-50 conventional oil during warmer months since my gz250 is seeing lots of stop & go traffic, construction zone delays, idling at traffic lights, etc; other than a minor reduction in power & gas mileage, are there disadvantages to running a thicker oil? thanks...

raul10141964 · 07-08-2014, 11:30 PM

I will not use 20W-50 on any vehicle.
this oil will increase the stress on the oil pump an slow the oil flow trow the engine reducing the cooling an increasing the fuel consumption

gz4me + · 07-09-2014, 12:02 AM

Raul is correct. I discussed changing weight of oil with 3 different motoercycle shops. All advised against the idea. Stick with recommended weight oil was the answer I got from all .

Water Warrior 2 · 07-09-2014, 01:45 AM

15-40 Shell Rotella dino will work well enough. The 20-50 weight is just a tad heavy for a smaller engine to pump.
Much larger V-twins are sometimes recommended to run a 20-50 due to heat, engine stresses and the shear forces of the gears.

**jonathan180iq** · 07-09-2014, 08:24 AM

10w-40 covers all temp ranges that any normal person is going to see.

Water Warrior 2 · 07-09-2014, 02:28 PM

Quote:

Originally Posted by jonathan180iq

10w-40 covers all temp ranges that any normal person is going to see.

Very true but why be normal?

**jonathan180iq** · 07-09-2014, 03:47 PM

kmrcstintn · 07-20-2014, 09:25 PM

OK...the 20w-50 currently in the bike will be used as a 1000 mile 'flush' and back to 15w-40 or 10w-40 afterward

07-08-2014, 05:33 PM	#1
kmrcstintn Member Join Date: Apr 2012 Location: Palmyra, PA Posts: 33	20w-50 Dino oil OK for hot weather? been thinking about using a 20w-50 conventional oil during warmer months since my gz250 is seeing lots of stop & go traffic, construction zone delays, idling at traffic lights, etc; other than a minor reduction in power & gas mileage, are there disadvantages to running a thicker oil? thanks... Login or Register to Remove Ads
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07-09-2014, 12:02 AM	#3
gz4me + Senior Member Join Date: Sep 2013 Location: Santa Maria, California Posts: 234	Raul is correct. I discussed changing weight of oil with 3 different motoercycle shops. All advised against the idea. Stick with recommended weight oil was the answer I got from all . Login or Register to Remove Ads
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07-09-2014, 08:24 AM	#5
jonathan180iq Super Moderator Join Date: Jan 2007 Location: Dalton, GA Posts: 3,996	10w-40 covers all temp ranges that any normal person is going to see. Login or Register to Remove Ads
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07-08-2014, 11:30 PM	#2
raul10141964 Senior Member Join Date: Apr 2012 Location: Elkhart, Indiana Posts: 369	I will not use 20W-50 on any vehicle. this oil will increase the stress on the oil pump an slow the oil flow trow the engine reducing the cooling an increasing the fuel consumption
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07-09-2014, 01:45 AM	#4
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	15-40 Shell Rotella dino will work well enough. The 20-50 weight is just a tad heavy for a smaller engine to pump. Much larger V-twins are sometimes recommended to run a 20-50 due to heat, engine stresses and the shear forces of the gears.
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07-09-2014, 03:47 PM	#7
jonathan180iq Super Moderator Join Date: Jan 2007 Location: Dalton, GA Posts: 3,996
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07-20-2014, 09:25 PM	#8
kmrcstintn Member Join Date: Apr 2012 Location: Palmyra, PA Posts: 33	OK...the 20w-50 currently in the bike will be used as a 1000 mile 'flush' and back to 15w-40 or 10w-40 afterward
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