D50/Power Ram 50 L4-2300cc 2.3L DSL (1984)
Engine Oil: Technical Service Bulletins
Engine - Oil Recommendation Revision
Models
1983 Through 1985 D-50 Pick-Ups Equipped With Diesel Engines
Subject
Revised Crankcase Oil Recommendations
Index
LUBRICATION
Date
July 28, 1986
No.
10-01-86
P-2730
To improve the starting of the subject model vehicles in areas where temperatures reach 32~F (0~C) or below, the following engine oils should be used.
Cold Temperatures
-10~ F (-23~C) or below
SAE 5W-30
Normal Temperatures
-10~ F (-23~C) or above
SAE 10W-30
FIGURE 1
Anytime temperatures are +32~F (0~C) or below, single grade SAE 30 oil must not be used. This oil should only be used in areas where the
temperatures are +32~F (0~C) or above.
