1948 GMC 5 Window Truck w/350SBC - 0 leaks
1990 Grand Prix Turbo w/113,000 miles - 0 leaks (had a large oil leak (1 quart every 2 weeks) that we had repaired a few months ago)
1992 Olds 88 (Sold over a year ago with 193k on it) - 0 leaks
1993 Olds 88 w/116,000 miles ('92'* replacement) - 0 leaks
1995 Beretta Z26 w/89,000 miles- 0 leaks
2000 Bonneville SSEi w/83,000 miles - 0 leaks
2002 Grand Prix w/21,000 miles - Very Very small antifreeze leak, about a dime size drop a day, we are thinking from the IC but aren't sure.
We park the '48 GMC, SSEi, and GTP in a garage with a coated floor, leaks of any size are very obvious. The only fluid that gets on the floor is the water from the AC on the SSEi and GTP and the very small antifreeze leak from the GTP.
So, to answer your question about if it is normal or not, I am going to have to say it is pretty normal to not have any leaks, seeing that none of our 3800'* have ever leaked (except the GTP), and our 3100 has never leaked, and our Turbo 3.1 doesn't leak anymore, and our 350 doesn't leak, I would say GM can make engines that don't leak.
1990 Maroon Grand Prix STE McLaren 3.1 Intercooled Turbo, 14.695 @ 94.49 on 12psi before cam/heads/etc.
1990 Bright Red Grand Prix McLaren 3.1 Intercooled Turbo, 14.819 @ 92.72, 189whp
1999 Grand Prix GT 9.75:1|K&N|160 tstat|No Ubend/Cat/Res|UD Pulleys|Ported M90/TB/Heads|XPZ|2.55"|Pacesetters|Stage 2 I/C. 12.442 @ 112.78
2000 Blue Bonneville SSEi Supercharged Gutted Airbox|K&N|3.4"|1.9'*|WP Pulley|Custom DHP|180*stat|41932'*|No Cat. 14.681 @ 94.80
2002 Dark Cherry Grand Prix GTP Supercharged & Intercooled
12.084 @ 114.38 w/1.743 60', 315.6whp, Fastest Stock Cam M90 GTP!
NOW XP CAMMED, 340.6whp with XP, stock heads, Gen 3 M90, 11.984 @ 115.84 w/1.750 60'!
Most HP Stock Heads Gen 3 M90 GTP!
2004 Red Monte SS Supercharged K&N|3.4 Pulley|1.9'*|180*stat|41919 plugs|3" dp|No cat/ubend|DHP|Shift Kit. 14.2 @ 98
GOT BOOST??? Friends dont let friends drive stock!