Purplexed

Just picked up a 93LS400 w/85,000 miles.
Want to change ALL fluids, plugs, distrib cap etc
Can you help with advice

Recommended oil , Mobil 1 OK ? or Castrol Syntec

Synthetic Auto trans oil, Which one ?

Filter ?

Synthetic Dif fluid ?

What plugs ?Brand and Ht range ?



Will the engine leak due to synthetic oil "thinnesss",

When to change timing belt ??

Whats the best place to pick up Service manual,

Is there a website for toyota part numbers vs Lexus #s

LexusTech

Timing belts are done at the 90k mark.Since you're changing all the fluids do the belt while you're at it,since coolant must be drained when doing a belt

Stick with the factory transmission fluid,it's not the usual Dexron/Mercon ATF you find at parts stores.

Spark plugs,I'd get NGK or Denso.They're what's found from the factory,I'd stick with the stock heat range.

Any idea if the previous owner did a 60,000 mile service? The serpentine belt and fuel filter (along with spark plugs) were the major components replaced at that service. If not add those to the list.

Manuals are ordered through the dealer,I'd find an online source like Carson Toyota to save some money.

I don't have any oil or gearlube preferences but am a believer of factory components like oil filters,spark plug wires,and caps/rotors. Even on my own vehicles.

hlippy4

e-bay may have it -- if not always new stuff.

Also -- bumperbooks.com has some -- I saw that they have a 1992 ls manual for $12.00 -- the manuals for 92-94 have got to be virtually identical.

Good Luck

Hlippy4

VQT

You need a shop manual to do the maintenance on your. The owner manual only show how to start/drive the car
Ask Steve Ganz at Carson Toyota: Gonzo4@earthlink.net
his price seem to be the best so far.

Price for a shop manual should be less than $90

JBrady

Mobil One oil is WAY better than any conventional oil. Other synthetics are very good but Mobil One is most readilly available (generally). One problem occasionally encountered with older vehicles changing to synthetic. Conventional oil tends to "swell" the rubber seals in a engine while synthetic does not. Sometimes (50/50) on an older engine when changing to synthetic the seals go back to their original size. If the affected seal is a wear seal a leak may occur. The leak is the result of damage done by the conventional oil. There may be an additive to prevent this when changing to synthetic. If not, and you experience a leak, changing back to conventional will re-swell the seals.