Lucas or Castrol oil? any feedback? (96 and 103 Twin Cam engine)
#11
I had been using the Mobile 1 V-twin for some time. On my last change the parts store was out so I gave the Lucas a try. First thing I noticed was that my valve train was much quieter, also noticed that my engine Temps are down slightly although I can't confirm that it had anything to do with the oil. As for the Castrol I've been using their 10-40 Dino bike oil in a metric that's pushing 100k miles since it was new and I've never had any complaints.
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F150HD (11-19-2016)
#12
I put Lucas Oil 10702-PK6 High Performance Synthetic 20W-50 Motorcycle Oil, Lucas Oil 10790 Chain Case Oil, Lucas Oil 10791 Gear Oil. Can't believe how much quieter and smother it runs and shifts. Had The HD full synthetic when I bought it. I have a Baker 6spd and I talked to them they recommended it for there trans. Very happy with all 3.
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F150HD (11-19-2016)
#13
Hey F150, I'd stick with the Mobil V-Twin oil ! Did you notice the Castrol bottle said "Full Synthetic', & the Lucas bottle said Synthetic, I think it's a Semi-Syn Blend ! All you need is a drop of Synthetic, to call it Synthetic, But, if it states Full Synthetic, it better be !
I'm looking at an oil study dated March, 2006; they put 16 M/C 20W-50 thru 12 tests, Mobil V-Twin came in 2nd. Lucas HP came in 12th. Castrol GPS came in 15th & Castrol V-Twin came in 16th. Both Castrols were a Syn/Dino Blend. Lucas was a Synthetic.
In another study dated June, 2009, they tested 17 20W-50 M/C oils; Mobil V-Twin came in 2nd again. Castrol V-Twin came in 14th. Lucas HP came in 16th. Looks like Castrol got better, & Lucas got worse ! Note; Belray was the most expensive, came in 13th, just ahead of Castrol V-Twin, Go Figure ! Note; If there was a current test study, some oils would do better, & some would be worse ? Some are constantly on top, AMSOIL & Redline use ONLY #4 Basestocks. Mobil is using a #3 Basestock, after taking Castrol to court 10/12 years ago. Google it ! Good Luck !
PS, Don't use Mobil 15W-50 car oil or Rotella Diesel oil, or BYE, BYE Warranty !
I'm looking at an oil study dated March, 2006; they put 16 M/C 20W-50 thru 12 tests, Mobil V-Twin came in 2nd. Lucas HP came in 12th. Castrol GPS came in 15th & Castrol V-Twin came in 16th. Both Castrols were a Syn/Dino Blend. Lucas was a Synthetic.
In another study dated June, 2009, they tested 17 20W-50 M/C oils; Mobil V-Twin came in 2nd again. Castrol V-Twin came in 14th. Lucas HP came in 16th. Looks like Castrol got better, & Lucas got worse ! Note; Belray was the most expensive, came in 13th, just ahead of Castrol V-Twin, Go Figure ! Note; If there was a current test study, some oils would do better, & some would be worse ? Some are constantly on top, AMSOIL & Redline use ONLY #4 Basestocks. Mobil is using a #3 Basestock, after taking Castrol to court 10/12 years ago. Google it ! Good Luck !
PS, Don't use Mobil 15W-50 car oil or Rotella Diesel oil, or BYE, BYE Warranty !
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F150HD (11-19-2016)
#14
Syn3, Mobil1 all of it is running $12+ a quart and Lucas/Castrol were 30% cheaper so thought I'd ask.
Anyway, found a deal online on Mobil 20w-50 V Twin for around 8.50ish a quart so did a volume buy. Price will only go up. So, tabling the Lucas and Castrol for now, but, still nice to have options.
Did run the 15-50 in my TC88 Fatboy and it ran ok. Some folks swear by it. But yea, its for cars, so.....
#15
Thanks.
Syn3, Mobil1 all of it is running $12+ a quart and Lucas/Castrol were 30% cheaper so thought I'd ask.
Anyway, found a deal online on Mobil 20w-50 V Twin for around 8.50ish a quart so did a volume buy. Price will only go up. So, tabling the Lucas and Castrol for now, but, still nice to have options.
Did run the 15-50 in my TC88 Fatboy and it ran ok. Some folks swear by it. But yea, its for cars, so.....
Syn3, Mobil1 all of it is running $12+ a quart and Lucas/Castrol were 30% cheaper so thought I'd ask.
Anyway, found a deal online on Mobil 20w-50 V Twin for around 8.50ish a quart so did a volume buy. Price will only go up. So, tabling the Lucas and Castrol for now, but, still nice to have options.
Did run the 15-50 in my TC88 Fatboy and it ran ok. Some folks swear by it. But yea, its for cars, so.....
#16
Bull$hit
#17
Well I've been running the Walmart 15-50 Mobil 1 synthetic since late 2009 in the engine of my 2010 103 Limited with no problems. $23 for a 5 quart jug averages out $4.60 a quart.
Last edited by jamesroadking; 11-21-2016 at 06:22 AM.
#19
I have ran Lucas in my road king and now have it in my 2016 RGS.I run Lucas primary and there Harley transmission oil and I can't notice a difference in anything I run.Valvaline,Lucas,Schaffer.lucas does quiet the valve train down a little.
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