Best engine degreaser?

[AtomicBanana]

As title. I've got a motorbike engine that's covered in old sticky oil (had a little leak going on) and my car engine could do with some TLC too. What's the best stuff going, or is it all much the same?

 

[Mobius 1]

i'd say jizer.

 

[MattHep]

Gunk?

 

[Relentless81]

Autoglym do a spray from Halfords, works well enough for me

 

[CaptainUnlikely]

I use Autosmart G101, dilute it about 10:1 for my engine and less for door shuts etc. One bottle goes a long way. I'd imagine at around 5:1 it'll easily cut through old oil.

 

[MatteH Oxford]

Paraffin (Kerosene).

Usually found amongst the barbecue stuff on petrol station forecourts.

 

[Dr Who]

Jizer, by a big margin over the alternatives.

 

[Virdi]

GUNK

 

[dalin80]

urine.

 

[Dr Who]

GUNK

Gunk is very poor compared to Jizer, it leaves an oily finish and requires much more brushing and leaving to soak.

 

[Jonny69]

Gunk works for me.

 

[Dr Who]

As with our top two, Gunk left an oil-free finish. But it was not as consistent as the Comma and Jizer degreasers, as there were patches of grime remaining. Worked best when we left it to soak for the necessary 10 minutes, unlike other formulae, which were more effective when they were brushed off as well.

Read more: http://www.autoexpress.co.uk/products/products/233917/gunk.html#ixzz1nJ9Znv5d

Haven't tried the Comma, but they rated that even higher than Jizer, so may be worth a go.

 

[Reppyboyo]

Paraffin.

Used it on my bike all the time, great stuff.

 

[zipp0r]

petrol

 

[dannycivic02]

Depends how bad it is but I use Daisy apc which works quite well cheap too, quite well recommended on detailing world.

 

[bobuk]

Jizer

 

[Dale V]

Jizer is good

ive also used a b&q type patio cleaner to good effect before

 

[stulid]

G101

 

[Django x2]

I'm going to go against the grain here and say Bilburry wheel cleaner.

Literally the best thing i've ever used on an engine bay

 

[robj20]

i use petrol still works out cheaper than most cleaners.