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Spectro Heavy Duty Premium Petroleum Engine Lubricant - 20W50 - R.HD25

  • Part #:
    305945
  • Manufacturer Part #:
    R.HD25
Our Price: $7.93
10+ on Hand

Overview of Spectro Heavy Duty Premium Petroleum Engine Lubricant - 20W50 - R.HD25

Why not buy a case of 12 and get a FREE hat? See Case Part No. 3002423 and get a FREE $14.39 value Spectro hat! For Hat details, see Dennis Kirk Part No. 3437628.



  • A superior motor lubricant designed specifically for use in American made Harley® V Twin engines.
  • Crafted from superior petroleum stocks combined with the most advanced anti wear, anti carbon additive systems available, Spectro Heavy Duty extends component life, reduces wear, eliminated valve sticking.
  • Exceeds all known OEM and Harley Davidson® warranty requirements.

Specs for Spectro Heavy Duty Premium Petroleum Engine Lubricant - 20W50 - R.HD25

Base Petroleum
Container Size 1 Quart
Type Oil - Engine 4-Cycle
Units Each
Viscosity 20W50
Weight 2.00 lbs

Specs for Spectro Heavy Duty Premium Petroleum Engine Lubricant - 20W50 - R.HD25

Base Petroleum
Container Size 1 Quart
Type Oil - Engine 4-Cycle
Units Each
Viscosity 20W50
Weight 2.00 lbs

Fitment for Spectro Heavy Duty Premium Petroleum Engine Lubricant - 20W50 - R.HD25

See if this part fits your ride

Part 305945 fits the following machines

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good stuff!
You can't go wrong with Spectro oils. I have used this stuff for many years without any problems, it usually still looks new when I change it.
March 14, 2013
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Browse 1 question Browse 1 question and 1 answer
Does your oil have friction modifiers?
Charles M on Jun 22, 2017
BEST ANSWER: No sure, you would have to contact the manufacturer, Spectro

Instructions and Manuals for Spectro Heavy Duty Premium Petroleum Engine Lubricant - 20W50 - R.HD25