Motor Oil Preferences????

9 replies to this topic
  • MX974

Posted March 04, 2002 - 07:57 AM


I have used the Yamaha R 4 stroke oil in my old 1998 YZ400 and now in my 2002 YZ426 and have had good luck. The only problem is that it is rather expensive. Has anyone out there tried something different?


  • sirthumpalot

Posted March 04, 2002 - 08:21 AM


I've been using Spectro 20-50 synthetic blend in my '01 since new (about 9 months) and have zero complaints. It's about $6.50/liter in my area (south Florida). I would use the Yamalube R myself if I could find it in my area.

  • Ga426owner

Posted March 04, 2002 - 08:48 AM


Please do a search on this topic......plenty of info in the archives... :)

  • fershy

Posted March 04, 2002 - 10:52 PM


Many opinions on this subject, here is an expert of sorts that can shed some light on this exact topic. Choice your oil wisely!

  • yz426dez

Posted March 04, 2002 - 03:50 PM


For the past year ive been using Motul 3000 SAE20W50. ive had no problems. Its only $3.99Quart.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • J_Bone

Posted March 04, 2002 - 04:00 PM


I have been useing Castrol Syntec Blend 20w50 on my "00"426. I have had NO problems with this oil despite what some experts at have said. They said syntec was a real bad choice for a 426 with the oil use for a transmission and clutch. They said it was too slippery for the clutch and break down.
Well Castrol Syntec Blend 20w50 has worked just fine and I still have stock clutch with no problems. Plus you can find it at any Auto parts store.

[ March 04, 2002: Message edited by: J_Bone ]

  • chopbroc

Posted March 04, 2002 - 04:46 PM


I've been riding/racing 4 strokes hard for 9 years in the desert. Started with XR's and am now on a 99 YZ400F (3 years now). I buy inexpensive 20/50 by the case and change it often. Thats the key. I've never had any problems.......not even replacing clutches.

  • h_bomb

Posted March 08, 2002 - 01:48 PM


As long as you got oil in it and change it as needed it will be fine with just about any oil,I run yamalube 4r semi senthetic 7.50$ a bottle after u buy the first 2 u only need to buy 1 because they take a quart and a half.

  • DPW

Posted March 08, 2002 - 02:03 PM


I wouldn't say "any oil" is good, but the NON-enegry conserving oil should be fine. The energy conserving oils have extra additives that can fry your clutch, that's what I've heard at least. I've been using Mobil 15/50 red cap for the past years now without a problem. Do a search on it like Ga426owner said you find plenty of reading material.

  • h_bomb

Posted March 08, 2002 - 03:10 PM


DPW,I didnt say any oil??????? :) Well I did say any oil ,you no what I mean? :D

[ March 08, 2002: Message edited by: h bomb ]

Related Content


2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  30 replies

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.