The Krypt Keeper Posted May 2, 2004 Share Posted May 2, 2004 I use the mobil 1 oil 15w-50 like many of us use. Alot of people look at me stupid or ask why when I tell them the oil I use. How much of a difference can the oil weight make? what advantages is there to use a thicker or thinner oil than the 15w-50? I am not concered too much about my oil lasting 250,000,000 miles before I have to change it. I just want a oil that protects my internal parts till the next oil change I change my oil and filter every 2500 to 3000 miles.. or about every 6 trips to the mountains :wink: Quote Link to comment Share on other sites More sharing options...
Northman Posted May 2, 2004 Share Posted May 2, 2004 My engine guy laughed when I told him what weight of oil I was running (15W50). He told me I might as well run gear oil. :oops: I'm going to stick with the 10W40 from now on for longer trips, and may even put in something thinner if I'm going to dragrace it, or just for a dyno run. He claims they have seen as much as 8hp with (don't quote me on the actual viscosity) 0W20 race oil. The oil is good for a full weekend of racing, but makes a lot more power. Quote Link to comment Share on other sites More sharing options...
pacman Posted May 2, 2004 Share Posted May 2, 2004 10W40 Shell Rotella S/B Quote Link to comment Share on other sites More sharing options...
Pete in PA Posted May 3, 2004 Share Posted May 3, 2004 In owners/service manual. 10-40 reccomended. However you may run all the other weights if ambient falls in the zone. Sounds like Honda can't commit. My 85 Sabre manual said the same. I don't like the shifting of the 5-40 Rotella synthetic. Is it the weight? The Mobil 1 15-50 didn't seem to be sapping power when I ran it and the shifting was great. I still don't know if I'll run the Rotella till 4k miles before I put the M1 back in. Quote Link to comment Share on other sites More sharing options...
Red J Posted May 3, 2004 Share Posted May 3, 2004 What about Mobil 1 0w40? Comments? Quote Link to comment Share on other sites More sharing options...
Pete in PA Posted May 3, 2004 Share Posted May 3, 2004 Is Mobil 1 0-40 "energy conserving"? If it is, can't use it. Quote Link to comment Share on other sites More sharing options...
Red J Posted May 3, 2004 Share Posted May 3, 2004 Nothing on the bottle saying so. Is this a prominent label? -J. Quote Link to comment Share on other sites More sharing options...
Red J Posted May 3, 2004 Share Posted May 3, 2004 Hugemongous images, of the fronts and backs of Mobil 1 oil bottles: Front Rear I see the medallion, on the rear. The 5w30 (blue cap) has energy conserving printed on the lower half of the medallion, the 15w50 (red) and 0w40 (black) do not. -J. Quote Link to comment Share on other sites More sharing options...
Northman Posted May 3, 2004 Share Posted May 3, 2004 First pic don't work, but you're right about the second. I think the 0W40 Mobil just became my new oil. :grin: Have you used it, yet? Quote Link to comment Share on other sites More sharing options...
Red J Posted May 3, 2004 Share Posted May 3, 2004 Pic fixed. The 0w40 is only available here in Kansas, from Autozone. Some of the other guys don't have, can't get. It isn't available at Walmart in KS, and it's not available at Autozone in 5qt, just the singles. This will likely come around, as it's a new weight for Mobil. This makes it more expensive, but... I have used it, but not in my bike. May be a little while before I get the chance to give it a go. J. Quote Link to comment Share on other sites More sharing options...
Northman Posted May 3, 2004 Share Posted May 3, 2004 I know a Mobil distributor up here, so I'll ask him what he can do for me. He's still the only place I can get the MX4T from, and specializes in race lubricants, so I'll ask him. Quote Link to comment Share on other sites More sharing options...
gcp Posted May 3, 2004 Share Posted May 3, 2004 A 5w-40 is in reality a 5w oil that has additives that make the oil act like a 40w at high temps, but these additives are the first to wear out. Since MC gearboxes are very hard on oils that have lots of viscosity modifiers, it's best to use oils with little or no viscosity modifiers. Mobil 1 15w-50 has very little viscosity modifiers while Amsoil full synthetics and Motul high end oils have none. That's why these oils are good bike oils. Quote Link to comment Share on other sites More sharing options...
RodeRash Posted May 3, 2004 Share Posted May 3, 2004 In owners/service manual. 10-40 reccomended. However you may run all the other weights if ambient falls in the zone. Sounds like Honda can't commit. Probably more like...."It's not that important, pick whatever weight makes you happy." Quote Link to comment Share on other sites More sharing options...
SwampNut Posted May 3, 2004 Share Posted May 3, 2004 I looked all over the bottle of Crisco, but can't find the weight listed. Quote Link to comment Share on other sites More sharing options...
RodeRash Posted May 3, 2004 Share Posted May 3, 2004 Crisco is not compatable with wet clutches. The flash point is either to low or to high. (I forget which) Synthetic extra virgin olive oil works best. Quote Link to comment Share on other sites More sharing options...
RodeRash Posted May 3, 2004 Share Posted May 3, 2004 Was that an inflatable synthetic virgin named Olive? Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted May 3, 2004 Author Share Posted May 3, 2004 Might go looking around to see if I can find that 0w-40 I don't mind using the 15w-50 since its easy to find but I might know a couple places that will get the 0w-40 for me easy also.. Quote Link to comment Share on other sites More sharing options...
Jette Posted May 4, 2004 Share Posted May 4, 2004 Dave had a synthetic virgin once, in Towanda. Made quite a noise when it popped. Almost woke up all the roof people. Maybe if he had used synthetic virgin oil.... This time I mean it, I am seriously ROFL!!! My Bird has never shifted smoother.. now running the Mobil 1 15-50! Quote Link to comment Share on other sites More sharing options...
Edward Posted May 5, 2004 Share Posted May 5, 2004 My Bird has never shifted smoother.. now running the Mobil 1 15-50! Try Amsoil Quote Link to comment Share on other sites More sharing options...
Sup3rPuPu Posted May 6, 2004 Share Posted May 6, 2004 have anyone try royalpurple oil before? :?: Any comments? www.royalpurple.com Quote Link to comment Share on other sites More sharing options...
Sk8boardIL Posted May 7, 2004 Share Posted May 7, 2004 I like the Castrol GTX 10W40 Quote Link to comment Share on other sites More sharing options...
MiDNiTXX Posted May 7, 2004 Share Posted May 7, 2004 I use Mobil 1 (5w-50) and (15w-50) and IF there was a difference I think I liked the 5w better. Quote Link to comment Share on other sites More sharing options...
ironmike Posted May 8, 2004 Share Posted May 8, 2004 ... Yep, use it (varying viscosity weights) in all my bikes and am very satisfied with it. I buy it in 5 gal. kegs... one keg of 20w-50 will last me about a year in Louisiana heat... :cool: Quote Link to comment Share on other sites More sharing options...
XXera Posted May 8, 2004 Share Posted May 8, 2004 Here we go again. This was copied from an Amsoil website. They seem to think RP has Moly in it: Royal Purple InfoAs you may know, RP is big in racing circles. The chemistry they use is something we choose not to use. One of our big selling points is extended drain intervals. Some additive chemicals can cause adverse conditions when used for long periods. Royal Purple uses a different chemistry than most. They are one of only a handful of marketers using Moly in their oil. Moly is a solid, specifically banned by Cummins, due to excessive valve train wear. Moly (Molybdenum Disulfide) is a processed mineral that is similar in appearance to graphite. Moly has good lubricating properties when used either by itself (in dry power form or as an additive to oil or other lubricants). Particles of the Moly can come out of suspension and agglomerate. This can actually clog oil filters or oil lines and the rest normally settles in the bottom of the oil pan. This seems to be more likely when using extended drain intervals. The only test we ran on RP involved their 20W50 Racing oil versus our AMSOIL Series 2000 Synthetic 20W50 Racing Oil (TRO). We ran two 4 ball wear tests with different parameters, a spectrographic baseline, FTIR scan and volatility tests. The Royal Purple showed a significantly high volatility rate with a 12.51% boil off rate. This compares to TRO with a 4.47% volatility rating. Wear scars were also smaller with the TRO. For example the TRO left a .41mm scar and the RP oil left a .66mm scar. There was also a surprising difference in the viscosity index. The RP has a VI of 129 versus 155 for the TRO. The higher the VI, the better the viscosity stays in place at high temperatures. This infomation was profided by AMSOIL Tech Department. They had an independent lab test Royal Purple against AMSOIL. The results are posted above. They have found Moly in Royal Purple. As stated above, this can have negitive effects on your engine. AMSOIL has been dyno tested against Royal Purple, in a issue of Fast Fours & Rotaries magazine. Click here to see the results. I welcome the opportunity to work with you personally as your servicing AMSOIL Dealer. If you have any questions or concerns please don't hesitate to contact me. If you would like more information about AMSOIL, click on one of the following links below: Quote Link to comment Share on other sites More sharing options...
Northman Posted May 8, 2004 Share Posted May 8, 2004 Good info, but if only he could spell......... :roll: Quote Link to comment Share on other sites More sharing options...
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