If it is just a piece of pipe with no raised bead to grip the hoses, I would be concerned. With oil pressures of about 45psi you don't want to risk a connection working loose over time. If the connections are dry and tight you are probably OK for a while but I wouldn't wait too long.

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1991 M-B 560SEL Arctic White/Grey 99,000 Miles
1987 M-B 300SDL Ivory/Palomino 229,000 Miles (sold but never forgotten)
2006 Volvo XC70 Blue/Beige
1999 Porsche Boxster Arena Red/Savanna Beige
1986 Porsche 928S Goldweiss/Brown