Xyzzy Very informative Nicely done!
I think the rimula is just the rotella rebranded for your market. Honestly, I wouldn't worry about brand name as long it it meets or exceeds JASO MA specs. It cannot be JASO MB, those oils have friction modifiers which are bad for the Valk.My second question is about oil. The Mobil 1 Racing 4T 10W40 oil is expensive here in Australia. Best price I can find is about $18 per litre. Many GL1800 owners (and other vehicle users) in the US use Shell Rotella T6 5W40 full synthetic diesel oil. That oil is hard to get in Australia, and I'd rather use 10W40 than 5W40. The international equivalent of Rotella T6 appears to be Shell Rimula R6 10W40 full synthetic. I can buy that here for $9 per litre. At that price I can afford to change the oil every 5000km, and the filter every 10000km. Perhaps 6000/12000. The Honda recommendation of 8000 miles/13000km is too long IMO.
Has anyone tried Rimula R6 in a GL1800?
This is by far the easiest oil change on any I've owned. I got the longer Mobil 1 oil filter and was concerned about it fitting. Went right on there.And ignore the nonsense in the manual about removing the plastic cover, an unnecessary pain with the plastic clips. There's plenty of room to loosen the filter and slide it out, saving a few minutes and bad words....
opinion. its another scam. good quality disposable filters will remove much carbon and as much particulates as any fine mesh screen filter. the screen would need to be back flushed with an amount of liquid very refined distillate (seafoam, etc) costing more than a disposable filter. and then there is the subject of oil restriction and pressure drop in the filter which of couse must have a bypass relief which diminishes the claim of superior filtering.. most of these seemingly better solutions just get you caught up in the emotion that you are doing your motor a huge benefit. Not.. everything we sink our money into , we have skin in the game and so we Feel Better. regular routine scheduled maintenance with quality oil and filter, this motor is known and recorded for over 1 million miles w/o rebuild.. there are so many other things we can do with our money and energy that are actually useful. my opinion. ponchoAnybody have an opinion about those reusable stainless steel mesh oil filters such as the one offered by PC Racing and others? They claim to do a better job of filtering the engine oil in terms of flow and size of the offending particles.