Gearbox service fluid purchase calculator

Calculate additional fluid needed and packages to purchase with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use additional fluid needed and packages to purchase to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

User-specified required service fill (L)
7.2
Usable correct-spec fluid on hand (L)
1
Single package size (L)
4
Measured drained quantity (L)
6.5
Additional fluid needed (L)
6.2
Packages to purchase
2
Fluid remaining after supplied fill (L)
1.8
Specified fill minus measured drain (L)
0.7

Try another scenario

User-specified required service fill (L)
9.5
Usable correct-spec fluid on hand (L)
1
Single package size (L)
4
Measured drained quantity (L)
6.5
Additional fluid needed (L)
8.5
Packages to purchase
3
Fluid remaining after supplied fill (L)
3.5
Specified fill minus measured drain (L)
3
Calculation method

Calculation method

Additional fluid needed (L)

max(0,requiredFill-onHand).

Packages to purchase

ceil(additionalNeeded/packageSize).

Fluid remaining after supplied fill (L)

onHand+packages*packageSize-requiredFill.

Specified fill minus measured drain (L)

requiredFill-drained; descriptive discrepancy only.

Symbols and units
a
User-specified required service fill (L)
b
Usable correct-spec fluid on hand (L)
c
Single package size (L)
d
Measured drained quantity (L)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Purchase arithmetic only. Required fill and exact fluid specification must be supplied from the applicable service procedure; drained quantity is not treated as capacity. One package size, no mix optimization. Supported limits: fill>=0, onHand>=0, packageSize>0, drained>=0.
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