Class 37 - BR Blue (Orange Cantrail) - 37140

Class 37 - BR Blue (Orange Cantrail) - 37140

Marsoni

M251S

$169.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Class 37 - BR Blue (Orange Cantrail) - 37140March depot's 37140 was one of the first Class 37s to gain the high visibility headlight, being so fitted in mid 1986. It also gained an orange cantrail stripe later the same year before it moved back to Stratford in May 1987. Although allocated to East Anglian infrastructure duties it was no stranger to freight or passenger work, regularly featuring on the summer dated Norwich Gt Yarmouth legs of services from London, the Midlands and the North East.

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My 06 Altima (185k miles) had been burning massive amounts of oil (like 4 quarts every 800 miles) due to a leaking PCV valve hose that took forever for me to narrow down (months). So after getting that under control I figured I needed to decontaminate the poor engine. When using this I idled my car to operating temp (about 8 minutes). Poured the bottle in, idled it for another 15 minutes. Drained the oil (black and thick). Put the plug back in, poured about 2.5qts of new oil in. Idled it for 10 minutes. Drained that (black but much thinner). Took the old filter off. Let both areas drain for 10 minutes. Put the plug back in, put the new filter on and filled with the 4.6qts of new oil my car calls for. Ran for a few minutes (like 2 with a few revs) and then let sit for 10 mins before checking the level. When I checked my dipstick it was so clean I thought I had a leak because I couldn't see it on any of the crosshatch. I ended up having to go by touch to get the reading. This stuff is amazing.

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Reviewed in the United States on November 15, 2025