Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 10, 2025 ...

Good day and thanks for the question. The product I would recommend would be our Engine Oil Stop Leak at a 20 precent treat rate. ( PN 10278 ) This product will mix perfectly with the 15w-40 engine oil and over time will help slow the leak by rejuvenating whatever seal is worn and dried out. This product is available at most autoparts retail locations. thanks for using Lucas.

Awhile back we were discussing different additives to our hydraulic system which is 15-40 motor oil. I had written Lucas but didn't receive a reply so I tried again. Got lucky this time. Here is the reply:

My steering gear is not leaking (yet) but one of my fans is seeping and it looks like the seeping rate is increasing. Not enough for a drop but definitely wet. I'm going to try some of this Lucas additive. I've used Bars Leak for the coolant system in a couple of rigs with good result so I'm hoping for the same with the hydraulic system

These older rigs hold 23 quarts so I'm adding 1 gallon and a half quart or so. Same price at O'Reilly's. More on eBay.
jor

Update on Stop Leak

I went full on with the stop leak method. To address the seeping hydraulic fan and preempt the steering gear seal failure I used Lucas Engine Oil Stop Leak. While I was at it I treated the engine cooling system with Bar's 1196, again a preemptive move. Finally, I went at the dash air with Red Angel. I am happy to report up to this point anyhow, there is no longer any seepage I can see at the fan, the radiator continues as it was and the dash air is blowing nice and cold.
jor

How any cans of the Red Angel, just 1?

But not good to add any Olestra Oil. I've heard it has some negative side effects.

Pierce