Reference for Bava Metzia 3:8
יוֹצִיא לוֹ שְׁתוּת לְיַיִן. רַבִּי יְהוּדָה אוֹמֵר, חֹמֶשׁ. יוֹצִיא לוֹ שְׁלשֶׁת לֻגִּין שֶׁמֶן לְמֵאָה, לֹג וּמֶחֱצָה שְׁמָרִים, לֹג וּמֶחֱצָה בָּלַע. אִם הָיָה שֶׁמֶן מְזֻקָּק, אֵינוֹ מוֹצִיא לוֹ שְׁמָרִים. אִם הָיוּ קַנְקַנִּים יְשָׁנִים, אֵינוֹ מוֹצִיא לוֹ בָּלַע. רַבִּי יְהוּדָה אוֹמֵר, אַף הַמּוֹכֵר שֶׁמֶן מְזֻקָּק לַחֲבֵרוֹ כָּל יְמוֹת הַשָּׁנָה, הֲרֵי זֶה מְקַבֵּל עָלָיו לֹג וּמֶחֱצָה שְׁמָרִים לְמֵאָה:
He deducts a sixth for wine [if he deposited wine with him, and it got mixed up with his wine. (The vessels absorb a sixth.)] R. Yehudah says: A fifth. [For the earth from which the vessels were made in the locale of R. Yehudah absorbed a fifth; all according to the locale.] He deducts three logs of oil to a hundred — a log and a half for lees; a log and a half for absorption. If it were refined oil, he does not deduct for lees. If they were old vessels, he does not deduct for absorption. R. Yehudah says: Also if one sells refined oil to his neighbor all the days of the year, he (the buyer) accepts (a deduction of) one and a half to a hundred for lees. [Just as they stipulated (a deduction for) lees for the depositor, so they stipulated it for the seller, viz.: If one sells oil to his neighbor and gives him from his jugs refined oil which he constantly uses, the buyer accepts a deduction of a log and a half to each hundred for lees. The halachah is not in accordance with R. Yehudah.]