Can i run my 04 dyna on fully sunthetic oil ie Mobil 1?
Yes its done 15,000 miles, ive heard that the stock harley oil isnt all that great quality and thought maybe it may last a little longer if i ran it on a a better quality oil, I am currently running Genuine Harley 20w50 SAE, i have used Mobil 1 in my cars and it has a good additive package, have you used synthetic in a late model harley urself?
Yeah I use the 15w50 MOBIL 1in the engine and the 20w50 V-twin formula in the trans, as I think it is missing some additives that the 15w50 has so it won't mess up the clutch discs. I run it in an '02 Dyna and my wife's '05 Sportster. Harley has a synthetic also, it is made by Sun Oil Co. if I recall, but tests showed it had a little larger wear scar than other brands of synthetic.
Yes Sir ; SURE ,Mobl 1 car oil is ok,it's impecable for use............. works fine on my bike... Sincerely "DG"
I recently bought an 85 Goldwing Interstate with 60,800 miles on it. What is the best oil to run in this bike? TIA
Oil from a freshly opened bottle is the best to use. Have never seen any evidence where one got quantifiably longer or shorter life using any modern oil. Twenty-five years ago Quaker State had excessive paraffins which would plug tight oil passages if one skipped oil changes. Thirty-five years ago "paraffins" was considered a positive feature of Pennsylvania crude over the inferior products manufactured from Mideast crude. Mobil Delvac, Shell Rotella-T, Chevron Delo, all in 15W40, work very well at reasonable prices.
(just my opinion, and worth what you paid for it. If you don't mind changing your oil, and are willing to properly warm the engine before loading it, I would suggest one of the premium 20w50 oils available for your Goldwing. The bright stock oil that the refineries use for the 20w base in the Valvoline, Castrol, Mobil 20w50 oils, and also for the Shell Rotella 15w40, is some of the highest quality available. We once did a two year oil test using air cooled Suzuki 4-strokes as race bikes. We used everything we could obtain locally. There was a definite difference in performance (of the oil) of the above mentioned oils and others. Any conventional 10w40 or Texaco, Pensoil, or Quaker State oil we tried would be dark (my bike), or already breaking down ("full throttle"/ son's bike), by the gas stop in the enduros. By the end of the long course loop, mine would be breaking down, and his machine's oil would be "burned" and getting "sludgy". Using the 20w50 oils mentioned in the first paragraph, my oil would still be pretty at the end of the A Loop. (Josh's would be getting dark, but still in decent shape.) The long molecules in the oil blend will take shear loads better as the oil's temp gets past the temperature range that most of the synthetics were designed to target. Also, The viscosity enhancers used to turn 5wt base stock into a 5w40 (also 10w to 1w40) blend break down more quickly than those used to change 20wt to 20w50. I have experimented with several of the new synthetic blends (Spectro Synthetic 10w50, Royal Purple, Red Line, Shell, Mobile 1, Castrol). I really like the Spectro the best, so far, and it is safe for a motorcycle's wet . I am not sure that I would spend that kind of money for anything other than a race bike's needs. I guess that the longer advertized service life would be an asset for an "IronButt" ride, but a good 20w50 conventional oil will hold up for the length of most trips. I like changing my oil. It gives me a chance to monitor wear on the transmission and clutch by seeing what comes out with the oil. It makes me feel good when the engine has fresh oil. My Gasser's hydraulic clutch is smoother and the bike shifts better with a thinner oil, but it's hp output (50 hp 300cc 2-stroke) demands a high shear strength, so I use Shell Rotella 4w40 synthetic oil in it's transmission. I change it after each race, or when it turns dark (trail riding), and it performs very well. Good Riding to you. Jim Cook 2006 GasGas DE 300 Team LAGNAF www.smackovermotorsports.com **********************************************************
I started using Spectro, the natural/synthetic mix, in my SR500 when I found it lowered the temperature on the oil gauge about 20 degrees F over all natural oil. The bike also seemed to run quieter than before. I can'tsay it's any better otherwise, but I started using it on the SR about 18 years ago and the head has never been off the bike.
