Fuel Economy Chart

If you are wondering what model Sea Doo has what economy and range, you can look it up below.

Note that I’ll be adding more models/years as I get more info. Also, the top speed (WOT) has been guestimated, but should be close. If you have an accurate source for actual factory Sea Doo speeds, please let me know and I’ll update the page!

Also note that the only fuel consumption figures Sea Doo provides is at WOT (wide open). A better comparison may be at a lower rpm for the newer SC models since it’s practically impossible to run them at WOT for any length of time!

Using base price of $3/gal for gas, I estimated fuel/oil costs as follows:
Sea Doo 2 stroke (non-DI) = $3.60/gal using $25/gal Sea Doo oil at 50:1
Sea Doo 2 stroke 787 RFI = $3.50/gal using $35/gal Sea Doo synthetic oil
Sea Doo 2 stroke 947 DI = $3.65/gal using $35/gal Sea Doo synthetic oil

Sea Doo 4TEC = $4.00/hr (added $1/hr for covering called for dealer oil, cooling & filter changes every 100 hours)
(of course if you change your own fluids, you could cut that figure down a bit)

The oil injection usage was a calculation that took into consideration the different usages for non-RFI, RFI and DI models. It was based on a 50:1 base for non-RFI / non-DI injection then factoring in better oil useage for RFI and DI models. It was kind of a complicated guess, but should be close!
The fuel useage figures below come directly from the Sea Doo shop manual.

YEAR MODEL SIZE (CC) HP WT (LB) WT/HP RATIO FUEL USEAGE (GAL/HR)(WOT) TANK SIZE (INC RES) HR PER TANK (WOT) EST. WOT MPH COST / HR TO RUN (WOT) EST. MI / TANK (WOT)
1993
SP
587
55
368
7.956
5.5
8.7
1.58
38
$20
60
SPI
587
55
368
7.956
5.5
8.7
1.58
40
$20
63
SPX
587
60
370
7.327
6
8.7
1.45
42
$22
61
GTS
587
55
465
9.720
5.5
8.7
1.58
37
$20
59
GTX
587
60
465
8.910
6
8.7
1.45
40
$22
58
XP
657
70
373
6.357
7.8
9
1.15
45
$28
52
1994
SP
587
55
388
8.364
5.5
9
1.64
38
$20
62
SPI
587
60
392
7.733
6
9
1.50
40
$22
60
GTS
587
60
463
8.877
6
8.7
1.45
40
$22
58
SPX
657
70
397
6.700
7.8
9
1.15
45
$28
52
XPI
657
70
412
6.914
7.8
9
1.15
45
$28
52
XP
657X
80
412
6.050
8.8
9
1.02
47
$32
48
GTX
657
70
485
7.923
7.8
8.7
1.12
45
$28
50
1995
SP
587
55
388
8.364
5.5
9
1.64
38
$20
62
SPI
587
60
392
7.733
6
9
1.50
40
$22
60
GTS
587
60
463
9.317
5.9
12
2.03
43
$21
87
SPX
657X
80
397
5.863
8.4
9
1.07
47
$30
50
GTX
657X
80
485
7.263
8.7
12
1.38
45
$31
62
XP
717
85
412
5.694
8.2
9
1.10
52
$30
57
HX
717
85
390
5.247
8.7
7
0.80
55
$31
44
XP800
787
110
434
4.600
11.7
9
0.77
57
$42
44
1996
SP
587
55
388
8.364
5.5
9
1.64
40
$20
65
SPI
587
60
392
7.733
6
9
1.50
42
$22
63
GTS
587
60
463
9.317
5.9
12
2.03
43
$21
87
SPX
717
85
412
5.694
9.2
9
0.98
53
$33
52
HX
717
85
390
5.247
8.7
7
0.80
55
$31
44
GTI
717
85
485
6.835
9.3
12
1.29
50
$33
65
XP
787
110
434
4.600
11.7
9
0.77
57
$42
44
GSX
787
110
504
5.673
11.7
15
1.28
57
$42
73
GTX
787
110
582
6.382
11.7
15
1.28
55
$42
71
1997
SP
717
70
412
6.914
6.2
9
1.45
47
$22
68
HX
717
85
390
5.247
8.8
7
0.80
55
$32
44
GS
717
85
478
7.035
8.7
15
1.72
50
$31
86
GSI
717
85
478
7.035
8.7
15
1.72
52
$31
90
GTS
717
85
463
6.576
8.8
12
1.36
45
$32
61
GTI
717
85
593
8.388
8.8
15
1.70
52
$32
89
SPX
787
110
434
4.600
11.7
9
0.77
57
$42
44
XP
787
110
525
5.573
11.7
11
0.94
57
$42
54
GTX
787
110
578
6.345
11.7
15
1.28
55
$42
71
GSX
787
110
500
5.636
11.7
15
1.28
57
$42
73
GSX LTD
947
130
523
4.946
14.5
15
1.03
62
$52
64
1998
GS
717
85
474
6.988
8.8
15
1.70
52
$32
89
GTS
717
85
483
6.812
8.8
12
1.36
45
$32
61
GTI
717
85
593
8.388
8.8
15
1.70
53
$32
90
SPX
787
110
428
4.545
11.7
9
0.77
57
$42
44
GTX RFI
787
110
635
6.864
11
15
1.36
55
$39
75
XP LTD
947
130
551
5.100
14.5
14
0.97
63
$52
61
GSX LTD
947
130
523
4.946
14.5
15
1.03
62
$52
64
GTX LTD
947
130
635
5.808
14.5
15
1.03
60
$52
62
1999
GS
717
85
474
6.988
8.8
15
1.70
52
$32
89
GTI
717
85
597
8.435
8.8
15
1.70
53
$32
90
GTS
717
85
486
6.847
8.8
12
1.36
45
$32
61
GSX RFI
787
110
515
5.773
11
15
1.36
57
$39
78
GTX RFI
787
110
651
7.009
11
15
1.36
55
$39
75
SPX
787
110
433
4.591
11.7
9
0.77
57
$42
44
GSX LTD
947
130
528
4.985
11.7
15
1.28
62
$42
79
GTX LTD
947
130
646
5.892
14.5
15
1.03
60
$52
62
XP LTD
947
130
551
5.100
14.5
14
0.97
64
$52
62
2000
GS
717
85
483
7.094
8.8
15
1.70
52
$32
89
GTI
717
85
606
8.541
8.8
15
1.70
50
$32
85
GTS INTER
717
85
490
6.894
8.8
12
1.36
47
$32
64
GSX RFI
787
110
516
5.782
11
15
1.36
57
$39
78
GTX RFI
787
110
644
6.945
11
15
1.36
55
$39
75
GTX DI
947
130
681
6.162
12.4
15
1.21
55
$45
67
RX DI
947
130
606
5.585
12.4
15
1.21
60
$45
73
GTX
947
130
664
6.031
14.5
15
1.03
55
$52
57
LRV
947
130
960
8.923
14.5
25
1.72
50
$52
86
RX
947
130
605
5.577
14.5
15
1.03
60
$52
62
XP
947
130
562
5.185
14.5
14
0.97
60
$52
58
2001
GS
717
85
482
7.082
8.8
15
1.70
53
$32
90
GTS
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTI
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTX RFI
787
110
643
6.936
11
15
1.36
55
$39
75
GTX DI
947
130
681
6.162
12.4
15
1.21
55
$45
67
RX DI
947
130
606
5.585
12.4
15
1.21
60
$45
73
GTX
947
130
663
6.023
14.5
15
1.03
55
$52
57
LRV
947
130
960
8.923
14.5
25
1.72
50
$52
86
RX
947
130
588
5.446
14.5
15
1.03
60
$52
62
RXX
947
160
623
4.644
?
15
?
70
?
?
XP
947
130
562
5.185
14.5
14
0.97
60
$52
58
2002
GTI
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTI LE
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTX RFI
787
110
643
6.936
11
15
1.36
55
$39
75
GTX DI
947
130
705
6.346
12.4
15
1.21
55
$45
67
LRV DI
947
130
960
8.923
12.4
25
2.02
50
$45
101
RX DI
947
130
606
5.585
12.4
15
1.21
60
$45
73
GTX
947
130
663
6.023
14.5
15
1.03
55
$52
57
RX
947
130
588
5.446
14.5
15
1.03
60
$52
62
RXX
947
160
623
4.644
?
15
?
70
?
?
XP
947
130
562
5.185
14.5
14
0.97
60
$52
58
GTX 4-TEC
1503
155
785
5.854
10.8
15.3
1.42
57
$43
81
2003
GTI
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTI LE
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTI LE RFI
787
110
695
7.409
11
15
1.36
55
$39
75
GTX DI
947
130
715
6.423
12.4
15
1.21
55
$45
67
LRV DI
947
130
960
8.923
12.4
25
2.02
50
$45
101
RX DI
947
130
606
5.585
12.4
15
1.21
60
$45
73
XP DI
947
130
562
5.154
12.4
13.5
1.09
60
$45
65
GTX 4-TEC
1503
155
790
5.917
11.4
15.9
1.39
60
$46
84
GTX 4-TEC SC
1503
185
900
5.552
16.4
15.9
0.97
65
$66
63
2004
GTI
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTI LE
717
85
600
8.471
8.8
15
1.70
50
$32
85
GTI RFI
787
110
680
7.273
11
15
1.36
55
$39
75
GTI LE RFI
787
110
700
7.455
11
15
1.36
55
$39
75
XP DI
947
130
600
5.446
12.4
13.5
1.09
60
$45
65
RXP 4-TEC SC
1503
215
790
4.266
16.4
15.9
0.97
68
$66
66
GTX 4-TEC
1503
155
840
6.240
11.4
15.9
1.39
60
$46
84
GTX 4-TEC SC
1503
185
867
5.374
16.4
15.9
0.97
62
$66
60
2005
GTI
717
85
623
8.741
8.8
15
1.70
50
$32
85
GTI RFI
787
110
680
7.273
11
15
1.36
55
$39
75
GTI LE RFI
787
110
700
7.455
11
15
1.36
55
$39
75
GTX
1503
155
840
6.240
11.4
15.9
1.39
60
$46
84
GTX WAKE
1503
155
860
6.369
11.4
15.9
1.39
60
$46
84
GTX SC
1503
185
867
5.374
16.4
15.9
0.97
62
$66
60
GTX LTD SC
1503
215
867
4.624
18
15.9
0.88
64
$72
57
RXT SC
1503
215
869
4.633
18
15.9
0.88
64
$72
57
RXP SC
1503
215
790
4.266
18.2
15.9
0.87
68
$73
59
YEAR MODEL SIZE (CC) HP WT (LB) HP/WT RATIO FUEL USEAGE (GAL/HR)(WOT) TANK SIZE (INC RES) HR PER TANK (WOT) EST. WOT MPH COST / HR TO RUN (WOT) EST. MI / TANK (WOT)

*Note that the WT/HP Ratio figures are based on a full tank using the listed tank volume.

Although the RFI and DI models do use better technology to conserve fuel/oil, they are a larger size so actually use more than their smaller counterparts. They also should be run with synthetic oil, which costs a bit more than the base oil you can use in non-DI / non-RFI models. When you look at the results above, I think it’s obvious that the smaller the engine, the cheaper to run. Of course, that’s pretty much the case with most vehicles!

Obviously, from looking at the figures, you’re much better off getting one of the mid ‘90s models if you want to run cheap and aren’t worried about top speed. They can be purchased for very little compared to the new ones and are easy to maintain and cheap to operate. The 1997-2004 GTI would be the one I would recommend if you’re looking for a pwc that can hold several riders and gear for the best cruising cost.

I find the below comparison a bit interesting. The WT/HP ratios are almost the same for the two skis but the 2005 eats loads more fuel than the 1998. If I recall, the 1998 SPX was only 10 mph slower than the RXP, so if you want to go fast, go for the SPX. You can find them for around $3000 instead of $10K!
YEAR MODEL SIZE (CC) HP WT (LB) WT/HP RATIO FUEL USEAGE (GAL/HR)(WOT) TANK SIZE (INC RES) HR PER TANK (WOT) EST. WOT MPH COST / HR TO RUN (WOT) EST. MI / TANK (WOT)
1998
SPX
787
110
428
4.545
11.7
9
0.77
57
$42
44
2005
RXP SC
1503
215
790
4.266
18.2
15.9
0.87
68
$73
59

One more note as for value and possible future expenses… don’t forget to consider that most models after 1996 use ignition components which are much more expensive than older models. And believe me due to recent parts requests they go bad regularly!
The newer 4TEC and 4TEC SC models also rely on many electrical components that only a dealer can properly diagnose if you have a problem. If you like working on your own machine or are planning on taking it where there aren’t many dealers (most everywhere outside the US), go for the older models!

If I really get bored, I may put together some value comparison figures for the above models as well!

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