Hitachi 19210B 8-Ounce Synthetic Compressor Oil, 12-Bottles

• Comes in a 12-pack
• Use with Hitachi tools
• 8-Ounces per bottle
• Essential for regular maintenance
• Comes with a 30-day limited warranty

I am writing this review in effort to clarify what the difference is between Hitachi 19210 compressor oil verses Hitachi 19210B compressor oil. The short answer is they are both one of a kind, 5W-50 synthetic compressor oil. Hitachi added the "B at the end designating Bulk.

For those who are interested in the long version, read on. I ordered a 12 pack of Hitachi 19210B compressor oil through Amazon and received a 12 pack of Hitachi 19210 compressor oil as labeled on the bottles.

I called Hitachi's 1-800-706-7337 (USA Power Tool) number that Friday evening and asked the rep to please tell me what is the difference between Hitachi's 19210 and 19210B versions of this compressor oil is.

The response was the 19210 has been discontinued and replaced by the 19210B version. The rep had no further information spec wise and suggested I speak with Hitachi's Tech Support team but unfortunately they left for the evening and would not be back until next Monday.

That night after reading two reviews at Amazons site selling individual bottles of 19210B, I too had the same concerns expressed in both of the reviews, is this a 10W-30 oil or seeing the 19210 has been discontinued, how old is the oil I received? I did not want to risk using this oil in three Hitachi compressors I own.

Convinced that there is a difference, I contacted Amazon that night and explained my issue. The Amazon rep was very polite, sympathetic and helpful. My original order was reordered with the expectation that I will receive 12 bottles labeled 19210B. I receive shipment today and on the sealed box there was a label stating "Hitachi 19210B 8 ounce synthetic compressor oil 12 bottles". The box was opened and all 12 bottles are labeled 19210.

I called Hitachi and asked to speak with a Tech Support rep. I asked the Tech Support rep what is the difference between 19210 and 19210B. The answer was there is no difference. Hitachi changed the model number by adding a "B" to indicate bulk. The silk screen label on the bottle was never changed and will read 19210 and further stated that this compressor oil is synthetic 5W-50 compressor oil.

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