Oldseadog Posted November 23, 2014 #1 Posted November 23, 2014 I have read several threads where people are using Shell Rotella T 15W-40 diesel oil. Is all oil the same? Would Castrol Diesel 15W-40 be the same? I don't want to damage anything, but am tired of buying the expensive oil from the dealer. Thanks for any and all advice.
Sylvester Posted November 23, 2014 #2 Posted November 23, 2014 I would use the Rotella T and have for years. I can't speak for Castrol, but if the numbers match it would work.
bongobobny Posted November 23, 2014 #3 Posted November 23, 2014 We don't want or need any friction modifiers which are bad for the wet clutch. Been using diesel for years...
cowpuc Posted November 23, 2014 #4 Posted November 23, 2014 Yep,, should be good to go Sea Puppy,, what makes the diesel oil work for us is the lack of additives found in "automotive oils"... Those additives do not seem to be clutch friendly - I actually can attest to the fact that using automotive oil WILL make your clutch slip.. I just use the cheapest available at the time but Tweeks has gotten treated to Castrol a couple times and I thought it worked great (it seems like I always find Rotella cheaper than Castrol).. Also have used "store brand" stuff (Super Tech from Wally World, Meijer Brand from Meijers,,, even Dollar General generic),,,, all seemed to work great to me as long as its Diesel... I have noticed some major differences in tranny smoothness if I run 20/50 instead of 15/40 in tempts above 70 degrees, especially in the desert tempts... Tweeks has had a steady diet of this mix of cheap stuff oil and is well above 250k miles.. While I do change my oil pretty consistantly,, always within 5k miles,, I have never been one to stick to one brand,,, thinking it all comes from the same "vat" if you will... I know NOTHING of modern super oils/synthetics.. I am to "old school" for my own good and just could never get into the idea of running my bike 6 to 10k miles without an oil change,,, paranoia just wont let me do it..
Marcarl Posted November 23, 2014 #5 Posted November 23, 2014 I just use diesel, 15-40 or so. I don't buy the cheapest but then not the most expensive either. If you want to put in an additive, use MotorKote, works great!
Venturous Randy Posted November 23, 2014 #6 Posted November 23, 2014 Diesel engines are probably the toughest environment for any oil. Given this, I started using diesel oil years ago and feel it works great for any vehicle that I have, whether it is my Infiniti, the bike or lawn mowers. RandyA
bj66 Posted November 24, 2014 #7 Posted November 24, 2014 (edited) I use the Rotella T in my rstd as well. I am a farmer and have it around. I use it in my semi and 4 wheel drive tractor as well. Oil change interval on tractor in manual says every 250 hours which to me seems to be insane. I am a believer in Rotella T, I have a lot of dollars trusted to it, and in the bike is the least of my worries. Edited November 24, 2014 by bj66 Spell check
cowpuc Posted November 24, 2014 #8 Posted November 24, 2014 I use the Rotella T in my rstd as well. I am a farmer and have it around. I use it in my semi and 4 wheel drive tractor as well. Oil change interval on tractor in manual says every 250 hours which to me seems to be insane. I am a believer in Rotella T, I have a lot of dollars trusted to it, and in the bike is the least of my worries. That sounds insane to me too BJ,,, especially in the environment that a tractor runs in.... Hmmm,, aint no farmer but it seems like 100 hours would even be high...
djh3 Posted November 24, 2014 #9 Posted November 24, 2014 I have a 96 Cummins. I got turned on to Rotella back in 09 or so when I still had my VTwin kawi 900. I ran mobil1 20w50 in summer and rotella t6 syn in winter. I usually run the dino rotella in the pick up. But have run it in bike too. I would agree probably one of the best all around oils on market. But with that being said the new cars some take like 0w20 for emissions and milage. Now would the 15w40 hurt a new engine? I dunno I wouldnt think so.
Oldseadog Posted November 24, 2014 Author #10 Posted November 24, 2014 Thank you for all the responses, I am definitely buying the diesel oil. I noticed they sell it at Costco.
djh3 Posted November 24, 2014 #11 Posted November 24, 2014 Around here Wally World has best price on it. Gallon of the 10w40 dino rotella goes for about $20 and the T6 Syn stuff is $23. I like the Mobil 1 Syn motorcycle oil also, but it is $10 a Qt
Pegasus1300 Posted November 24, 2014 #12 Posted November 24, 2014 Wow in our Wally World dino Rotella, Chevron Delo (same type oil),or other diesel type oils are only $12.69 a gallon.
JDaniel Posted November 25, 2014 #13 Posted November 25, 2014 Been using Rotella family of oils in motorcycles, cars and trucks for many years with no oil related problems.
djh3 Posted November 25, 2014 #14 Posted November 25, 2014 OK Price CK on motor oil isle!! Pegasus, you are correct. Dino Rotella is in the $13 range while T6 Syn is $22
silent67 Posted November 26, 2014 #15 Posted November 26, 2014 Wow in our Wally World dino Rotella, Chevron Delo (same type oil),or other diesel type oils are only $12.69 a gallon. He may be thinking of Rotella 10w 40 in the grey gallon jug, it is a dino syn blend oil and cost more than 15w 40 dino oil.
BratmanXj Posted November 26, 2014 #16 Posted November 26, 2014 Shell Rotella White Jug (white label) - straight weight conventional White Jug (blue label) - 15w-40 conventional oil Grey Jug - 10w-30 synthetic blend DOES CONTAIN FRICTION MODIFIERS Blue Jug - 5w-40 synthetic
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