Engine Oil Recommendation

[Tfrank59]

I've been using Valvoline 4T four stroke motorcycle oil on both my bikes and it's great.  Good for wet clutches, good for up to 8k miles (though I usually change at 5-6k), plenty of protection since it's full synthetic, and it's only about $8 a quart at Wally world.

[Rockmore]

I have been lurking here for 8 months and finally joined today- new member and will start asking and posting in regards to my wanted Drifter later, but wanted to comment on this post.  Im a experienced forum writer also so do not gripe about my avatar.  When registering today, it would NOT let me choose my own avatar but you HAD TO choose a avatar to register and then from the only ones provided.

One of the biggest misnomers in the evolving lube new tech world back in the 70's was that WD40 was a miracle lube spray lube for the future and mechanics (at first). It's main target market was for 'pros' who could break nuts and bolts easily with a few sprays. Thats was and still is the first red flag.  WD40 IS NOT a spray lube.  It is a corrosive with some scented lubricant added.  As mentioned, when the lube evaporates and/or wears off, whats left and it has done is attack anything it is applied to and makes whats left barely lubricated and many times damaged or worse than before.

In the electronics world for those that restore vintage amps etc, it is on the no, never list.  If you want to spray lube something, you use a good lubricant that does not contain any of the corrosives found in WD40. Break Free brand CLP is one of the best now, or even other types that contain silicone or other non-corrosive additives, etc.

I could imagine the damage or harm done using WD40 in a cuckoo clock or other fine watch parts.  Whew! beware..

[Diddly squatt]

When sprayed with WD-40, the clock will run fine for a while but then the lubricating qualities evaporate and the clock will not run. Usually requiring a disassembly of the movement and recleaning.  Don't misunderstand, I am not bashing WD-40. I use it all of the time, just not on clocks. Mike

[CDNRatMan]

  ok DS when you are heading this way bring your clock tools and you can service my three cuckoo clocks for me.....I'll provide the beer once your finished....

and yes what does WD 40 do to the clock?

[greenbarn]

Just don't use WD-40 on a clock. It's bad news.  Mike

Interesting...  what does it do?

[Diddly squatt]

Just don't use WD-40 on a clock. It's bad news.  Mike

[CDNRatMan]

Antique clocks eh!...........might have to try that on my cuckoo clocks, and get them all working again........

[Diddly squatt]

Thank you for the advise. I think I will use the Mobil 1 motorcycle oil (10W-40). It is available locally.  I repair antique clocks and many of us use Mobil 1 to lubricate clock movements because of it's excellent qualities. We used to buy the expensive clock oils that were sold by the ounce where a quart of Mobil 1 will last for years. Thanks again, Mike

[Trall]

I like and always used Mob 1 Full Sys Ext Peformance for my cars and truck
And
Used Mobile 1 Mororcycle Full Syntheic 4t it's made for all motorcycle with wet clutches and for the Drifter 800 I  use 10w-40w.   Just make sure if buying a different brand your buying motorcycle oil for wet clutches.  Here a picture of it.  I can buy it at Advanced Auto Parts if you have those. 

[CDNRatMan]

 I have been using the Kawasaki S4 with really good results. I tried a few different oils and was not happy but this seems to be doing the trick.

[pcarrell]

Just make sure it's safe for wet clutches and has no friction modifiers.  Your clutch will slip like crazy if it has friction modifiers.

Mobil One makes a synthetic motorcycle oil especially for wet clutches.  I've used it and it's good stuff, but it ain't cheap!  https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-v-twin-motorcycle-oil

[Diddly squatt]

I don't know what the PO used for engine oil but I use Mobil One synthetic in my other vehicles. Does anyone have any opinions on Mobil One in my Drifter 800? I am planning on changing the oil/filter so it will be ready for spring. Appreciate your advise, Mike