Mach 1 oil change for 109,000 mile mark question.

Calogero6685 · February 13th, 2011, 08:58 AM

I've changed it twice since I've owned her. Both times with full synthetic. The first time, I noticed dramatic increase in in mileage with Castrol (?). The next time she got Royal Purple, and continued up with better mileage and start-ups. I recall getting a little heavier weight (I think 10W-20 instead of the factory 5W-20). Should I stick with the 10W-20 even though the Florida heat is right around the corner, also, like I said in the Topic, this is 109K miles.

Answer... fast! I'm headed to Advance in a few.

jk_aktion · February 14th, 2011, 11:22 PM

i only use 5m-20 mobil 1 enhanced for daily driving and on the road course. never any problems in ny winter or fl summer as i go back and forth often. 113k miles on it as well.

Fill · February 14th, 2011, 11:34 PM

Stay with 5W-20, due to the tighter clearances of the Mod Motor. Especially if you drive in colder weather.

Calogero6685 · February 15th, 2011, 06:39 AM

Florida heat... not cold. All right, well I picked up the 5W-20 so that's going in as soon as I can. They say Royal Purple is good for 7,000 miles, but I've always done it every 3,000 even with my 2006 F-150.

Nightmare69 · February 15th, 2011, 08:37 AM

Ive always used 10w-30 full synthetic due to the texas heat,never had any issues running the thinker oil.

Fill · February 15th, 2011, 04:50 PM

Originally Posted by Calogero6685

Florida heat... not cold. All right, well I picked up the 5W-20 so that's going in as soon as I can. They say Royal Purple is good for 7,000 miles, but I've always done it every 3,000 even with my 2006 F-150.

What does a quart of 5w-20 Royal Purple cost in Florida? It's about $6.99 here in Ohio.

Calogero6685 · February 15th, 2011, 09:50 PM

$8.36 if I remember correctly.

clutchitup83 · February 16th, 2011, 02:04 PM

Originally Posted by Calogero6685

$8.36 if I remember correctly.

yep your right just bought 5 quarts today

February 13th, 2011, 08:58 AM	#1
Calogero6685 Because Racecar 2012 Mustang GT Premium Join Date: Dec 2010 Location: Tampa, Florida Posts: 2,037 iTrader: 0 reviews	Mach 1 oil change for 109,000 mile mark question. I've changed it twice since I've owned her. Both times with full synthetic. The first time, I noticed dramatic increase in in mileage with Castrol (?). The next time she got Royal Purple, and continued up with better mileage and start-ups. I recall getting a little heavier weight (I think 10W-20 instead of the factory 5W-20). Should I stick with the 10W-20 even though the Florida heat is right around the corner, also, like I said in the Topic, this is 109K miles. Answer... fast! I'm headed to Advance in a few.

February 14th, 2011, 11:34 PM	#3
Fill Premium Member Join Date: Feb 2011 Posts: 154 iTrader: 0 reviews	Stay with 5W-20, due to the tighter clearances of the Mod Motor. Especially if you drive in colder weather. __________________ Phil PRB Machining, LLC http://www.prbmachining-absdeletemanifolds.com/ 2003 Mach 1 NX 175 shot 10.73 @ 128.63 (Oct 2007) factory motor

February 15th, 2011, 08:37 AM	#5
Nightmare69 All Homo All The Time 2003 Mustang GT Whatever you run plus 5 seconds Join Date: May 2010 Location: East Texas Posts: 1,995 iTrader: 1 reviews	Ive always used 10w-30 full synthetic due to the texas heat,never had any issues running the thinker oil. __________________ BLACK STANG CREW MEMBER #30

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February 14th, 2011, 11:22 PM	#2
jk_aktion Regular Join Date: Jan 2011 Posts: 380 iTrader: 2 reviews	i only use 5m-20 mobil 1 enhanced for daily driving and on the road course. never any problems in ny winter or fl summer as i go back and forth often. 113k miles on it as well.

February 15th, 2011, 06:39 AM	#4
Calogero6685 Because Racecar 2012 Mustang GT Premium Join Date: Dec 2010 Location: Tampa, Florida Posts: 2,037 iTrader: 0 reviews	Florida heat... not cold. All right, well I picked up the 5W-20 so that's going in as soon as I can. They say Royal Purple is good for 7,000 miles, but I've always done it every 3,000 even with my 2006 F-150.

February 15th, 2011, 09:50 PM	#7
Calogero6685 Because Racecar 2012 Mustang GT Premium Join Date: Dec 2010 Location: Tampa, Florida Posts: 2,037 iTrader: 0 reviews	$8.36 if I remember correctly.

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