Flush or no? - Acura Forum

jahseed · 06-13-06, 10:34 PM

Just hit 105K on my '90 Legend and was wondering how often I should do an engine oil flush, radiator flush and transmission flush. According to the service records of the previous owner the last transmission (Dextron) flush was at 93K and I don't see any records of oil or radiator flushes. Any suggestions?

I also notice oil on the lower half of the engine block and was wondering if it might be time for head gaskets. Please offer any input u can.

PEACE

5speed · 06-14-06, 01:43 AM

Head gaskets? I think you mean valve cover gaskets, right?

1990Legend_LS · 06-14-06, 05:47 PM

you might need to replace the side cover gaskets and top cover gaskets too.

jahseed · 06-16-06, 05:32 PM

Yes valve cover gaskets---what is the typical time to change these?

5speed · 06-16-06, 06:37 PM

As needed.

*C25A1guy* · 01-22-07, 06:36 PM

Engine flush: Probably really don't need to do this much. What I would do is if you do your own oil changes, before you drain your oil, add a quart of ATF to the engine and let idle for about 15-20 min. Then proceed to normal oil change.

Trans flush: Typical dealer will say about 30k miles. Technicians will say every 15K miles with Honda ATF-Z1 only.

Coolent: With the age of the vehicle, I'd do a cooling system flush now (basically chemically clean the cooling system) and then just do a rad drain and fill every year or 2.

06-13-06, 10:34 PM	#1 (permalink)
jahseed Registered User Join Date: Oct 2005 Age: 38 Posts: 17	Flush or no? Just hit 105K on my '90 Legend and was wondering how often I should do an engine oil flush, radiator flush and transmission flush. According to the service records of the previous owner the last transmission (Dextron) flush was at 93K and I don't see any records of oil or radiator flushes. Any suggestions? I also notice oil on the lower half of the engine block and was wondering if it might be time for head gaskets. Please offer any input u can. PEACE

06-14-06, 05:47 PM	#3 (permalink)
1990Legend_LS Legend Repairee Join Date: Feb 2006 Location: Lima, OH Age: 21 Posts: 10 Car 1: 1990 Acura Legend LS	you might need to replace the side cover gaskets and top cover gaskets too. __________________ Respect us who own Legends ... We could own a Jag ... and have more electrical nightmares http://pic20.picturetrail.com/VOL127.../137217352.jpg 1990 Legend LS Sedan 5 spd 1989 Legend LS Sedan Auto(For Parts, Bad Trans)

01-22-07, 06:36 PM	#6 (permalink)
C25A1guy The Mongolian Join Date: Dec 2002 Location: Chan Marino, CA Age: 24 Posts: 6,378 Your Mood: Car 1: 2002 RSX Car 2: 2007 Honda Ridgeline Car 3: 2005 Honda Civic	Engine flush: Probably really don't need to do this much. What I would do is if you do your own oil changes, before you drain your oil, add a quart of ATF to the engine and let idle for about 15-20 min. Then proceed to normal oil change. Trans flush: Typical dealer will say about 30k miles. Technicians will say every 15K miles with Honda ATF-Z1 only. Coolent: With the age of the vehicle, I'd do a cooling system flush now (basically chemically clean the cooling system) and then just do a rad drain and fill every year or 2. __________________ Click here to see my gallery! Thanks To my sponsors and affaliets: M1 Autobody, ICB Motorsports, Honsport, Hondata, E Auto Parts, New Century Auto, APR Performance, Toyo Tires, Buddy Club USA, Torco Racing Oils, GenX Graphics

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06-14-06, 01:43 AM	#2 (permalink)
5speed Registered User Join Date: Sep 2003 Posts: 66	Head gaskets? I think you mean valve cover gaskets, right?

06-16-06, 05:32 PM	#4 (permalink)
jahseed Registered User Join Date: Oct 2005 Age: 38 Posts: 17	Yes valve cover gaskets---what is the typical time to change these?

06-16-06, 06:37 PM	#5 (permalink)
5speed Registered User Join Date: Sep 2003 Posts: 66	As needed.

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