It produces plenty of foam and lubricates well, plus it claims to have limescale inhibitors, which reduce residue marks in hard water areas. But it’s simply too expensive to be a winner here.
Jennychem Cola Shampoo
- Price: around £10
- Size: 1 litre
- Cost per wash: 25p
- Contact: jennychem.com
- Rating: 3.0 stars
A big one-litre bottle for a tenner makes the Cola-scented Jennychem seem like reasonable value, but the instructions say it needs a hefty 25ml dose for our 10-litre bucket, raising the cost to 25p per wash.
Although the aroma makes your mouth water and it did a reasonable job of cleaning, there was little foam and the lubrication measurement was fifth in the score chart.
Tesco Auto Shampoo and Wax
- Price: around £4
- Size: 2 litres
- Cost per wash: 6p
- Contact: tesco.com
- Rating: 2.5 stars
The obvious main attraction of the Tesco own-brand shampoo is the price. Despite being less than half the cost of any other product in this test, you get a full two litres of the fluid. Even using the suggested top dilution of 30ml per bucket, it costs just 6p per wash. But you get what you pay for – it produced almost no foam in the bucket and had the worst scores for lubrication.
Verdict
It looks expensive, but the Bilt-Hamber Auto-Wash can still be very effective even when used in tiny quantities, making it good value. It’s the Best Buy. VP is snapping at its heels with the pH Neutral Shampoo, which takes second place. Third goes to Simoniz’s Shampoo & Wax, which is simply great value.
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