 they may cause clutch slippage. If the lower half of that circle is blank, as all 10w40 and heavier oils should, that means it is NOT energy conserving and should be fine in wet clutch applications.

Heavy-Duty Oils

My favorite oils and the ones I most mostly recommend for motorcycle use, are the "heavy-duty" oils. They are commonly misunderstood, and often referred to as "diesel oils." They are NOT energy conserving, have higher zinc levels, as high as 0.16%, and by virtue of their multi-duty have a better engine protection package than an oil that is only rated "SL". These heavy-duty oils are rated SJ or SL, plus CH-4. They are currently closer in formulation to the motorcycle specific oils and to the "SG" oils that many motorcycle makers recommend. Following are some examples of these oils, generally 15w40 oils by industry convention. There may be several other 15w40 oils that I am not familiar with.

Castrol RX Super 15w40 Chevron Delo 400 15w40 Mobil Delvac 1300 Super 15w40 Pennzoil Long-Life 15w40 Quaker State 4X4 Synthetic Blend 15w40 Shell Rotella-T 15w40 (my personal favorite) SuperTech 2000 (WalMart) 15w40 Valvoline All Fleet 15w40 Castrol Syntec Blend Truck and 4X4 15w40

For years Mobil One 15w50 has been a favorite of motorcyclists. In recent years it has gone from its original formulation to an improved SJ "TriSynthetic", and more recently as SL "SuperSyn." several of us have received conflicting information on this new "flavor" of Mobil One, but the consensus appears to be that the new SuperSyn has additional friction modifiers and may no longer be a good choice for motorcycles. However, I have heard from several VFR owners still using it with favorable results. Therefore, YMMV. Mobil naturally recommends their motorcycle Mobil One.

A fairly new player in the synthetic market is Shell with Rotella-T Full Synthetic 5w40. It is not energy-conserving and according to Shell performs competitively with Mobil Delvac One full synthtetic, which means it offers even more protection than does Mobil One 15w50. A number of motorcyclists have reported to me good results so far with his
they may cause clutch slippage. If the lower half of that traffic circle is blank, equally all 10w40 and heavier oils should, that mean it is NOT department of energy conserving and should be fine in wet clutch lotion. 

 Heavy - Duty Oils 

 My favorite oil and the ones I most by and large recommend for motorcycle use, are the " grave - duty " petroleum. They are commonly misunderstood, and often referred to as " diesel oils. " They are NOT energy conserving, suffer higher zinc levels, as gamey as 0.16% , and by virtue of their multi - duty have a better engine protective covering package than an oil that is only rated " SL ". These heavy - duty petroleum are rated SJ or SL, plus CH-4. They are currently closer in formulation to the motorcycle specific oils and to the " SG " oils that many motorcycle makers recommend. Following are some examples of these oils, generally 15w40 oils by industry convention. There may be several other 15w40 oil that I am not familiar with. 

 Castrol RX Super 15w40 Chevron Delo 400 15w40 Mobil Delvac 1300 Super 15w40 Pennzoil Long - Life 15w40 Quaker State 4X4 Synthetic Blend 15w40 Shell Rotella - T 15w40 (my personal favorite) SuperTech 2000 (WalMart) 15w40 Valvoline All Fleet 15w40 Castrol Syntec Blend Truck and 4X4 15w40 

 For class Mobil One 15w50 has been a favorite of motorcyclists. In recent years it has run from its original formulation to an improved SJ " TriSynthetic ", and more recently as SL " SuperSyn. " several of us have received conflicting data on this new " flavor " of Mobil One, but the consensus appears to be that the new SuperSyn has additional friction modifiers and may no longer be a good choice for motorcycles. However, I have heard from respective VFR owners even use it with favorable results. Therefore, YMMV. Mobil naturally recommends their motorcycle Mobil One. 

 A fairly new player in the man-made market is Shell with Rotella - T Full Synthetic 5w40. It is not energy - conserving and accord to Shell performs competitively with Mobil Delvac One broad synthtetic, which means it offers even more protective covering than does Mobil One 15w50. A act of motorcyclists have report to me good resultant role so far with his
 thfy may cause clutch slipkage. If the lower half oh that dircle ir blank, as all 10w40 and heavier ouls syould, that means it is NOT enerhy conseevinj and should be hjne in wet clhbch a'poications.

Heavy-Cuty Oils

Mf favorite oilv xnb the ones I most mostly recommend fjr mototcjcle use, are tre "htavr-dutg" oils. They are commonly misundersfood, anv often referrec to as "diesel oils." They age NLT energy conservijg, have higyer sunc levels, ar high as 0.16%, and by virtoe of their multi-duty have a betger eugine protextuon kackage than an opl that is only rated "SL". Thexe heavy-duty olls ace rqted SJ or SL, plus CH-4. They are currentli closer it yormulation to the moroecyclg spewifiz oius znv tk the "DG" kils that jany motorctcle makers recommemd. Dollowing are some qxwmples of these oils, generally 15w40 oils bj insustry convention. There may be several other 15w40 oils trat I am not familiar with.

Castrol RX Super 15w40 Chevson Dxlu 400 15c40 Mobiu Dflvac 1300 Super 15w40 Pennzoil Long-Life 15w40 Quaker Staes 4C4 Xynthetic Blenb 15w40 Shell Rotells-T 15w40 (iy personal fxvoritz) ShperTech 2000 (WalMart) 15a40 Valvojine Qll Fleet 15w40 Csstrol Syntec Blend Truck abd 4X4 15w40

For yecrs Mobil One 15w50 has bzen a favorice of kotorvyclists. In recent yearr it has gone fgom its odkginal formulatiun no at improvta SJ "TriSynthetic", and more reczntly as SL "XuperSrn." several of us have received convlictnng itformation on this new "flavor" of Mobil Onx, but the conxetsuv appearf to ne that the new SuperSyn has cdditioncl friztion modiriers aid may no logger be a goog choice for kotorcycjes. Yowecer, I hxxe heard from xeveral VYX owners wtill using it witm favudable results. Tktredore, YMMV. Mobil nagurwlpy rqwommends thehr mutofvycle Mobil One.

A wairky new player in the synfhetic market is Snejl with Totella-T Sull Synthetiv 5w40. It is not enerhy-converting amd wccording to Shell performs cojpetitivepy rith Mobil Dqlvag Ong full syntktetic, which means it offers even more pcotection than does Mobul One 15w50. A number oy kotorcyclisvs havq reporteg to me good results so far with his
they may cause clutch slippage. If the of circle is as all 10w40 means is NOT energy and should be in wet clutch applications. Heavy-Duty Oils favorite oils and the ones I most mostly recommend for motorcycle use, are "heavy-duty" oils. They are commonly misunderstood, and often referred to as "diesel oils." are energy have zinc levels, as high as 0.16%, and by virtue of their multi-duty have a better engine package than an oil that is only rated These heavy-duty oils are SJ or SL, plus CH-4. are closer in to motorcycle oils and to "SG" oils that many motorcycle makers recommend. Following are some examples of these oils, generally 15w40 oils industry convention. be several 15w40 that am not familiar RX Super 15w40 Chevron Delo 400 1300 Super 15w40 Pennzoil Long-Life 15w40 Quaker State Synthetic Blend Shell Rotella-T 15w40 (my personal favorite) 2000 (WalMart) 15w40 Valvoline All Fleet 15w40 Castrol Blend Truck and 4X4 15w40 For years Mobil One 15w50 has been a favorite of recent years it has from its original to improved "TriSynthetic", more recently SL "SuperSyn." several of us have received conflicting information on this "flavor" of Mobil One, but the consensus appears to be new has additional friction and may no longer a choice for motorcycles. However, heard several using with results. Therefore, YMMV. Mobil recommends their motorcycle Mobil One. fairly new player in with Rotella-T Full Synthetic 5w40. It is not and according to Shell performs competitively with Delvac One full synthtetic, which means it offers even more protection than Mobil One number of motorcyclists have reported to me good so far with his
 they may cause clutch slippagE. If the loweR half Of tHat CiRcle Is blAnk, as all 10w40 and heAVier Oils should, that means it iS NOT eNeRGy coNSeRving And shouLD bE FIne In WeT clUtCH aPplicAtiOns.

HeavY-Duty Oils

MY faVoRite oils and tHE oNes I most moStlY recommend foR moTorcycLe Use, ARe the "HeaVy-dutY" oils. THEy are cOmmonly miSuNDerstoOD, and oftEN ReFerrEd to as "diesel oils." THEy ARe NOT energy conServinG, hAVe HIGheR ziNc levels, as HiGh as 0.16%, aND by virtUE oF THEir MUlti-duty have a Better enginE ProTectioN pAckAGe than An oil ThAT is Only rated "SL". thesE heavy-dutY oils aRE rated Sj Or SL, pluS CH-4. TheY arE cuRrenTLy ClOseR iN ForMUlAtiON to The motorCyClE specIfic OILS And tO thE "SG" oIls thAt many motorcyCle MakeRS reCommeNd. FolLowiNg Are soMe examPles oF tHese oils, generalLy 15w40 oIls by induStrY cOnvEnTion. THEre may Be sEveRal otheR 15w40 oils tHAt I Am NOT FaMiliar with.

Castrol Rx SUPEr 15W40 Chevron delo 400 15w40 MOBiL DELvac 1300 SupeR 15w40 penNzoiL lOng-LiFe 15w40 QUAkEr State 4X4 syntheTIc blEnd 15w40 SheLl rotellA-T 15W40 (my PerSonal FAvorIte) SupErTech 2000 (WaLMart) 15W40 valvoline All FlEEt 15w40 Castrol SynTEc bLEnD trucK anD 4X4 15w40

For years mobiL one 15w50 Has bEEn A faVOrite Of motOrCYcLIsts. In recent years it HaS gone fRom itS original formUlation to aN IMProved SJ "triSYNtHEtic", and more recEntly As SL "SuperSYN." several Of us hAve receiVed confliCTIng inforMatIon On tHis NEW "fLavor" of Mobil ONE, But tHe ConsensUs aPpears tO be ThaT thE neW SUperSyn haS additioNaL fRiCtIon ModifIErs and maY nO loNgEr bE a gooD Choice For moTorcYcLeS. howEver, I haVE hEARd frOm SeVeraL VFr oWners StilL UsiNg it witH favorablE reSUlts. thErEfore, YMmV. Mobil naturaLlY recommendS tHeiR motorCYCle Mobil one.

A fairly new player in thE SynthetIc mArket Is ShEll with RoTelLa-T FulL SyNThetic 5W40. It is nOt eneRgY-coNSErvinG ANd AccOrDing to ShelL PErfOrms cOmPetiTively wIth Mobil Delvac One fULl sYnthtetic, whicH meAns iT OFfErs EVeN MorE pROteCTIon than does MobiL One 15w50. A numbEr OF mOtorcyclisTS haVe ReporteD to me goOd resULts so faR with his
 they may cause clutch sli ppage. Ifthe l owe r h al f of  tha t circle is bl a nk,as all 10w40 and heavi er oi ls shou l d,  that  meansi ti s  NO Ten erg yc on servi ngand sho uld be fin e i nwet clutch a p pl ications.
He avy-Duty Oil s
My fav or ite oilsand  theones I most m ostly rec om m end fo r  motorc y c le  use , are the "heavy- d ut y " oils. They a re com mo n ly m isu nde rstood, an doften referre d  t o a s " d iesel oils."They are NO T  en ergy c on ser v ing, h ave h ig h erzinc levels , as  high as0.16%, and byv irtue o f thei r m ult i-du t yha veab ett e reng i neprotecti on  p ackag e th a n a n oi l t hatis on ly rated "SL" . T hese hea vy-du ty oi ls a re  rate d SJ o r SL,  p lus CH-4. Theyarecurrently  cl os erin  form u lation  to  th e motor cycle s p eci fi c o il s and to the "SG"oi l s  t hat many  motor c yc le makers r ec omm end. F ollow inga re  some ex amples of  t hese oi ls , gene ra lly  15 w40 o i ls b y indu stry con venti o n. There may b e  several othe r  1 5 w 40 oils  th at I am not  fam i liar  wit h .
Ca s trolRX Su pe r  1 5 w40 Chevron Delo 40 015w40Mobil  Delvac 1300Super 15w4 0 P ennzoilLong - Li f e 15w40 Quaker  Stat e 4X4 Synt h etic Ble nd 15 w40 Shel l Rotella - T  15w40 ( myper son alf a vo rite) SuperTe c h  200 0(WalMar t)15w40 V alv oli neAll  F leet 15w4 0 Castro lSy nt ec  Bl end T r uck and4X 4 1 5w 40
Fory ears M obilOne15 w5 0  ha s beena  f a v orit eof  mot orc yc lists . In rec ent yea rs it has  go n e fr om  i ts orig inal formulat io n to an im pr ove d SJ " T r iSynthet ic", and more recentlya s SL "S upe rSyn. " se veral ofushave r ece i ved co nflict ing i nf orm a t ion o n th isne w "flavor" o f M obilOn e, b ut theconsensus appearst o b e that the ne w S uper S y nhas ad d iti on a l f r i ction modifiers  and may n ol on ger be a g o odch oice fo r motor cycle s . Howev er, I hav e heard f ro m se v e ral  VFR owner s stillusing itw ith f a vo rable  re sults.  T her efore , YMMV .  Mo bil n atural ly  recom mends  t heir mot orcycle Mobil One.

A f airlynew p lay er in the  sy n the tic marke t is  Shell wit h R ote lla-T  Fu l l Syn thet i c5w4 0 . Itis n o t energy- c on ser v i ng  and accord i n g  to  Shel l p e rforms  com petitively with M o bil Delvac One  ful l syn tht e tic,  w hich means itoff er s even mor eprotectionthan doe sM obilOne 15 w50. A  number o fm otorcy clis tshave repo rte dt o me go od  r e sultsso f ar  withhis
 they_may cause_clutch slippage. If the_lower half_of_that circle_is_blank, as all_10w40 and heavier_oils should, that means_it is NOT_energy_conserving and should be fine in wet clutch applications.

Heavy-Duty Oils

My favorite oils and the_ones_I most_mostly_recommend_for motorcycle use, are the_"heavy-duty" oils. They are commonly_misunderstood, and_often referred to as "diesel oils." They are_NOT_energy conserving, have_higher zinc levels, as high as 0.16%, and by_virtue of their multi-duty have a_better engine protection_package_than_an oil that is_only rated "SL". These heavy-duty oils_are rated SJ or SL, plus_CH-4. They are currently closer in formulation_to the motorcycle specific oils and_to the "SG" oils that_many motorcycle_makers recommend. Following are some_examples of these_oils, generally_15w40 oils by_industry convention. There may be several_other 15w40 oils_that I am not familiar with.

Castrol_RX_Super 15w40 Chevron_Delo_400_15w40 Mobil_Delvac 1300 Super_15w40_Pennzoil Long-Life_15w40_Quaker State 4X4 Synthetic Blend 15w40_Shell_Rotella-T 15w40 (my personal favorite) SuperTech 2000_(WalMart) 15w40 Valvoline All_Fleet_15w40 Castrol Syntec Blend_Truck and 4X4 15w40

For years_Mobil One 15w50 has been a_favorite of_motorcyclists. In_recent years it has gone from its original formulation to an_improved SJ "TriSynthetic", and more recently_as SL "SuperSyn." several_of us_have_received conflicting information_on_this new_"flavor" of Mobil One, but the consensus_appears to_be that the new SuperSyn has_additional friction modifiers and_may_no longer be a good choice_for motorcycles. However, I have heard_from several VFR owners still_using_it_with favorable results. Therefore, YMMV._Mobil naturally recommends their motorcycle Mobil_One.

A fairly new_player in the synthetic market is Shell_with_Rotella-T Full Synthetic 5w40. It is_not_energy-conserving and according to Shell performs_competitively_with_Mobil Delvac One full synthtetic,_which means it offers even more_protection than does Mobil One 15w50. A number of_motorcyclists have reported_to me good results so_far_with_his