Synthetic Oil

darkglass · 09-03-2006, 01:07 PM

My 98 Runner 3.4 has 117k on it. The previous owner ran 5w 30 oils. I would like to run synthetic Mobil 1. Is it too late to switch?

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seanz0rz · 09-03-2006, 01:40 PM

there was a thread on this a few days ago, search for synthetic oil.

i just dumped 5.5 quarts into mine, mobil 1 7500. ill get the engine, which as always run on dino as far as i can tell, started on the 7500 stuff. next oil change ill decide to keep or move to the 15k stuff. seems like when i need an oil change, i can NEVER find the time to take it in or do it myself (never taking my vechile in unless i HAVE TO)

X-AWDriver · 09-03-2006, 02:06 PM

I'm sure you'll be fine switching over. I switched at 98k two years ago and now I'm at 118k and mine doesn't even burn a drop inbetween it's 9000 mile interval.

Potomacduck · 09-03-2006, 02:19 PM

I bought my '99 Limited at 150,000 with documented dealership maintenance. I switched over to Mobil 1 5W-30 every 5,000 miles with the factory filter.

That was 35,000 miles ago. It runs great, never leaks, never burns a drop of oil and gets 19-20 mpg on the highway.

AK · 09-04-2006, 08:38 AM

I switched my 1996 over to amsoil 5w-30 when i had 129,000 on it. I now have 139,000 and have no leaks or any problems.

Toyopnoy · 09-04-2006, 07:08 PM

Never to late IMO. I switched my 86 4Runner to Amsoil at 168000 miles and it still runs pretty strong. All original equipment might I add and now it's at 176000. Just make sure you change the oil filter after 1000 miles from the switchover. The synthetic will free up a lot of the detergents left behind from regular oil and the filter will get dirty pretty fast.

jjrgr21 · 09-05-2006, 11:14 AM

does anyone know how the different oils are ranked, by research, if so where does mobil1 rank. cheap at costco

Localmotion · 09-05-2006, 11:19 AM

do a search brotha....mobil 1 is good stuff

Amsoil is also very good. They make a oil that you change once a year.

helidriver · 09-05-2006, 05:49 PM

I've always leaned towards valvoline. No reason just picked one and stuck to it. Anybody know anything not to use valvoline?

surf4runner · 09-05-2006, 06:00 PM

i was unsure about switching at 90k, so i used synth blend first and have been using full synth since. @ 119k & no problems at all.

crackerjack · 09-05-2006, 06:13 PM

Yeah I'm kinda eeeasin in to synthetic by going blend first.I never was the type that ran screaming and dived into the swimming hole.

youngbuck · 09-09-2006, 04:15 PM

I would auto-rx it first:

www.auto-rx.com

It's what I did with mine.

09-03-2006, 01:40 PM	#2 (permalink)
seanz0rz Contributing Member Join Date: Jun 2006 Location: Cal Poly Pomona or Redlands, CA Posts: 1,282	there was a thread on this a few days ago, search for synthetic oil. i just dumped 5.5 quarts into mine, mobil 1 7500. ill get the engine, which as always run on dino as far as i can tell, started on the 7500 stuff. next oil change ill decide to keep or move to the 15k stuff. seems like when i need an oil change, i can NEVER find the time to take it in or do it myself (never taking my vechile in unless i HAVE TO) __________________ 1998 Toyota 4Runner SR5 V6 4x4 in Evergreen Pearl Metallic, Sonoran Steel #1, 285/75R16 BFG A/T, Elocker retrofit, Tundra calipers, brembo blanks, hawk lts pads, CarPC in custom center console with molded Indash touchscreen, KC daylighters mounted on Surco Safari rack, Custom sound system, 4xinnovation sliders, sleeping platform, Shrockworks front bumper, 1" 4crawler body lift, etc. Pictures Photobucket is being updated, if a picture i posted no longer works, please PM me.

09-03-2006, 02:06 PM	#3 (permalink)
X-AWDriver Contributing Member Join Date: Sep 2003 Location: Littleton,CO Posts: 10,176	I'm sure you'll be fine switching over. I switched at 98k two years ago and now I'm at 118k and mine doesn't even burn a drop inbetween it's 9000 mile interval. __________________ '99 4Runner Highlander 4wd E-locker,rear diff and deckplate mod * 265/75/16 Nitto TerraGrapplers * Yakima Load Warrior rack * clear corners/signals * Tacoma skidplate * Silverstar lamps/fogs Alpine CDA-9831,Bazooka EL Series 250w amp,MTX 10" sub

09-04-2006, 08:38 AM	#5 (permalink)
AK Registered User Join Date: Oct 2003 Location: Kansas City MO Posts: 81	I switched my 1996 over to amsoil 5w-30 when i had 129,000 on it. I now have 139,000 and have no leaks or any problems. __________________ 1996 4runner limited w/ factory e locker TJM15, 17" tacoma sport wheels Deckplate with Amsoil filter Amsoil fluids and Husky Liners

09-04-2006, 07:08 PM	#6 (permalink)
Toyopnoy Registered User Join Date: Mar 2005 Location: Long Beach Posts: 231	Never to late IMO. I switched my 86 4Runner to Amsoil at 168000 miles and it still runs pretty strong. All original equipment might I add and now it's at 176000. Just make sure you change the oil filter after 1000 miles from the switchover. The synthetic will free up a lot of the detergents left behind from regular oil and the filter will get dirty pretty fast. __________________ 1986 4Runner 22re auto "Old Blue" aka The STIG Aisin hubs, Downey 3" Leaf Springs, Rancho 9000's, TG Sliders, Downey Front Truss Brace, 285/75/16's X-Terrain's, Lockright Rr Locker, Flowmaster 40, Amsoil everything Socal/Long Beach ---Pat---

09-05-2006, 11:14 AM	#7 (permalink)
jjrgr21 Registered User Join Date: Aug 2006 Location: Maryland Posts: 1,520	does anyone know how the different oils are ranked, by research, if so where does mobil1 rank. cheap at costco __________________ 2003 4WD TRD Tacoma 1986 4Runner

09-03-2006, 02:19 PM	#4 (permalink)
Potomacduck Registered User Join Date: Jul 2006 Location: New Market, MD Posts: 115	I bought my '99 Limited at 150,000 with documented dealership maintenance. I switched over to Mobil 1 5W-30 every 5,000 miles with the factory filter. That was 35,000 miles ago. It runs great, never leaks, never burns a drop of oil and gets 19-20 mpg on the highway.

09-05-2006, 11:19 AM	#8 (permalink)
Localmotion Banned Join Date: Mar 2004 Posts: 0	do a search brotha....mobil 1 is good stuff Amsoil is also very good. They make a oil that you change once a year.

09-05-2006, 05:49 PM	#9 (permalink)
helidriver Registered User Join Date: Apr 2006 Posts: 63	I've always leaned towards valvoline. No reason just picked one and stuck to it. Anybody know anything not to use valvoline?

09-05-2006, 06:13 PM	#11 (permalink)
crackerjack Contributing Member Join Date: May 2006 Location: cookeville tn. Posts: 616	Yeah I'm kinda eeeasin in to synthetic by going blend first.I never was the type that ran screaming and dived into the swimming hole.

09-09-2006, 04:15 PM	#12 (permalink)
youngbuck Contributing Member Join Date: Sep 2005 Location: Colorado Posts: 196	I would auto-rx it first: www.auto-rx.com It's what I did with mine.

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