Fram oil filter for VFR.

as far as having scientific evidence on fram, no i don't. but as far as the thickness of the shell and material used yes i can. a representative from hastings filters visited our shop. he had a display of 4 oil filters. all of them were cut open around where the body meets the flange. the frams paper filter had 8 ribs where the hasting and better filters had 12 to 16. so i would say the filter inside is more important than so fancy no slip grip.

 

The one (& only!) time I got a Fram I discovered there were no threads cut into the mounting hole. If that's an indication of their quality control just imagine what the inside of the assembled filter could be like. I've had no issues/problems with the Purolator of the longer automotive style but the shorter M/C specific type is easier to fit in behind the headers. Conventional (dino) diesel oil is my choice, 15W-40, of whatever brand you favour. 5 K km change intervals, filter every 2nd change. 203K kms on the odo, '95 750.

 

what kind of oil are you using on ur 87 vfr? i need to change mine and i don't know what kind to use.

 

I use motomaster (Canadian Tire brand) 15/40 diesel oil on all my motorcycles. Never had a problem. I used to use Shell Rotella but it became a little hard to find. Any diesel brand will be fine with fairly frequent change intervals.

 

The full synthetic "diesel oils", if you look at the ratings on the back, also have an "SM" which is currently the highest available rating for gasoline motors.
Most motorcycles use the engine lube for the trans gears as well, and the trans gears literally mechanically "shear" the long chain polymers and cause the 10w-40 to degrade to the lowest viscosity. So that means in the summer your hot rod motor will eventually have 10-30 or 10-20, if you don't change every few thousant miles. Gear deive cams are just another place to shear polymers. The diesel oil resists this significantly longer, as do the very expensive synthetics.
In my case, it's not unusual to see temps as low as zero, and below, although the roads are mostly too icy and snowy to ride in the high mountains, and without 5w-40, even in the early spring, it just won't start and run.