Ballast Volume and Weight

Andy's Tire Service

"Our service goes a long way!"

Ballast Volume and Weight

Volume and weight are calculated with the valve at its highest position and liquid filled to that level. This will be approximately 75%. The 3½ pound calcium chloride per gallon of water solution is slush-free to -12°F and solid at -52°F. 5 lb/gal solution is slush-free to -53°F and solid at -63°F.

Considerable heat is generated when mixing CaCl2 and water. Always add the CaCl2 to the water rather than water to the CaCl2.

Tire Size		Water	3½ lb/gal CaCl2	5 lb/gal CaCl2
	Gallons	Pounds	Pounds	Pounds
4.00-12 4.00-15 4.00-19	2 2.5 3	17 21 25	24 24 30	27 27 34
5.00-15	4	33	35	40
5.50-16	5	42	47	53
5.90-15	5	42	47	53
6.00-14 6.00-16	6 6	50 50	60 60	67 67
6.50-16	7	58	71	74
7.5L-15 7.50-16 7.50-18 7.50-20	8.5 10 11 12	71 83 92 100	82 101 112 118	93 107 120 127
9.5L-15 9.50-20 9.50-24	11 18 20	92 150 167	112 189 202	120 200 213
10.00-16	18	150	189	200
11L-15 11L-16 11.00-16	14 15 25	117 123 208	142 155 260	147 160 267
12.5L-15	19	158	189	200
13.50-16.1	35	292	355	387
14L-16.1	28	233	284	307
16.5L-16.1	41	342	414	440
19L-16.1	55	459	556	600
21.5L-16.1	68	567	687	734
7.2-30	11	92	112	120
8.3-24	13	108	131	133
9.5-16	12	100	118	133
9.5-24	17	142	178	187
9.5-36	24	200	249	267
9.5-42	28	233	284	307
11.2-24	24	200	237	253
11.2-28	27	225	284	293
11.2-34	32	267	331	347
11.2-36	24	283	344	360
11.2-38	35	292	355	387
12.4-16	21	175	213	227
12.4-24	30	250	308	333
12.4-28	35	292	355	374
12.4-36	42	350	426	453
12.4-42	48	400	486	520
13.6-16.1	31	258	308	333
13.6-24	38	317	379	400
13.6-28	43	359	439	467
13.6-38	57	475	581	614
13.9-36	51	425	521	560
14.9-24	47	392	474	507
14.9-26	48	400	486	520
14.9-28	53	442	545	574
14.9-30	57	475	568	614
14.9-38	67	559	675	720
15.5-38	66	550	663	707
16.9-24	61	509	616	654
16.9-26	65	542	663	694
16.9-28	69	575	699	747
16.9-30	73	609	746	787
16.9-34	82	684	829	880
16.9-38	90	751	912	974
17.5L-24	55	459	557	600
18.4-16.1	49	409	497	520
18.4-24	74	617	758	800
18.4-26	79	659	805	854
18.4-28	84	701	852	907
18.4-30	89	742	912	960
18.4-34	100	834	1007	1081
18.4-38	110	917	1113	1187
18.4-42	115	959	1160	1240
19.5L-24	69	575	710	747
20.8-34	128	1068	1291	1374
20.8-38	140	1168	1420	1521
20.8-42	148	1234	1503	1600
21L-24	87	725	876	934
23.1-26	128	1068	1291	1374
23.1-30	143	1193	1456	1547
23.1-34	159	1326	1610	1708
24.5-32	170	1418	1729	1841
28L-26	157	1309	1587	1694
30.5L-32	217	1809	2202	2347
35.5L-32	313	2609	3172	3388