Crankcase capacity
Cat C7 engine capacity listed at 19 qts ,if I put 2 qts (prefill oil filter) can I then put 19 qts in the crankcase I instead of the 17 that I've been doing ?
Forum Discussion
7 Replies
- Depends. What year is your Cat? Does your engine have a slobber tube?
There are 10's of thousands of diesels in RVs out there where the dipsticks are marked wrong, so the engine blows oil out the slobber tube (newer engines don't have slobber tubes).
So if it's blowing oil? Use a quart less than what the book says. Still blowing oil? Drop it another quart.
In my Cummins, the book says 16 quarts. I run with 15 quarts...no greasy, grungy, messy oil on the back of the rig anymore. It always use to blow out that 16th quart so I don't bother to put it in anymore.
Plus what siggyd777 says. - 17 in my C-7 shallow pan makes the dipstick read normal. I find that if
I check the oil after a day or two, it reads high unless I wipe the
dipstick before getting a reading. This is including the filter change. siggyd777 wrote:
I had a CAT C7 330 in 2005, the total amount of oil is 19 quarts,
that is 2 quarts for the filter and 17 quarts for the oil-pan.
Siggy
This is the answer the OP is looking for, NINETEEN QUARTS TOTAL! And, although there's some mechanical differences, this is a C-7, not a 3126.
Scott- I had a CAT C7 330 in 2005, the total amount of oil is 19 quarts,
that is 2 quarts for the filter and 17 quarts for the oil-pan.
Siggy - Yes if you want to oil the car you tow. Two different oil pans for a 3126. The dipstick was added by the coach builder and have been know to be inaccurate. Maybe Brett... Wolfe 10 can help with how to identify which oil pan you have. 17 is the total amount of oil.
- Call Catapillar with the serial number....they can tell you
- Put 17 in and pull the dipstick. If it's good you're good. If it's low add more.
