you might find you need to do more scrapeing than spraying, and makes better use of the Gunk if you scrape the heavy stuff of before you use it - once it's cleaned up you can see if theres any gaskets weeping, but there won't be a problem w/ stuff getting inside - best too if you get that heavy stuff off b4 you get to the carwash, as most take a dim view of plugging their drains w/ 'toxic waste'! grin

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics