Sure you do. Your 90 deg F startup temp is a world of difference from
the 100 -110 deg C operating oil temps, in terms of pumpability.


"LaBomba182" wrote in message
...
| Subject: 40W oil causing wear problems over 30w?
| From:
|
| Interestingly enough, 15-40W is spec correct for both the mains and
genset.
|
| 15-40W lubes a cold engine sooner upon cold engine start up than 30W
or 40W
| oil
| does.
|
| You can hear the difference.
|
| While that maybe true, in this case we will not be seeing low ambient
temps.
| And if we were to, we would change the weight of the oil.
|
| Capt. Bill