LCGB Forums

The ability to post messages is restricted to LCGB members. Any questions contact us at lcgbadmin@googlemail.com

Fully synthetic oil versus semi synthetic oil

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Fully synthetic oil versus semi synthetic oil

Postby HxPaul » Sun Aug 24, 2014 8:45 am

I asked this question in another thread.
Is there any advantage to using fully synthetic oil,as opposed to semi synthetic oil ? I genuinely dont have a clue what the advantages are and would be grateful if someone could enlighten me.
User avatar
HxPaul
 
Posts: 1578
Joined: Fri May 30, 2014 9:18 am
Location: Halifax

Re: Fully synthetic oil versus semi synthetic oil

Postby coaster » Sun Aug 24, 2014 10:08 am

You will get a LOT of apposing opinion on this but my view is that fully synth is only really justified in highly tuned and or loaded engines. For engines with road type tunes then a semi synth is more than good enough. Eden on here has clocked up thousands of rally miles on high power engines using Rockoil Groundsman semi synth (sold for strimmers and chainsaws) with no lubrication issues whatsoever. I am also using this at the moment and can fault it, bought mail order in 5 litre cans it works out at about £2.50 a litre 8-)

For town or local riding, any mineral oil will serve but look for low smoke or low ash on the bottle as some can be a bit smokey.
User avatar
coaster
 
Posts: 2480
Joined: Fri May 30, 2014 1:00 pm
Location: Norfolk, Flying 8 Balls

Re: Fully synthetic oil versus semi synthetic oil

Postby IaninDorset » Sun Aug 24, 2014 4:29 pm

It is a bone of contention and many schools of thought and opinion on this issue, I did remember seeing a quite good article pointing out that a standard Lambretta or Vespa engine really wasn't designed to take synthetics as the oils are thinner and don't stick to the liners and bearings well enough on a standard engine as well enough as a good mineral oil would.

I use Rock City in my T5 and it does the job a treat, I used to use semi synth in my old Bajaj and it felt lumpy so chucked some Asda's finest in there and it ran like a dream :)
IaninDorset
 
Posts: 129
Joined: Wed Aug 13, 2014 1:19 am
Location: Gillingham - Dorset

Re: Fully synthetic oil versus semi synthetic oil

Postby mark1 » Mon Aug 25, 2014 7:52 pm

I've just started using groundsman as well, 200 miles done and no concerns...........yet lol
mark1
 
Posts: 70
Joined: Mon Jul 14, 2014 9:31 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby Eden » Mon Aug 25, 2014 7:57 pm

these are the kind of miles that groundsman has to deal with in my engines.... its a great oil

User avatar
Eden
 
Posts: 986
Joined: Fri May 30, 2014 9:57 am
Location: ILCLAND

Re: Fully synthetic oil versus semi synthetic oil

Postby IaninDorset » Mon Aug 25, 2014 8:56 pm

Theres some nasty junctions on the M3, I nearly got wiped out by Chris Evans who swooped across the chevrons and three lanes in a merc, caught up with him at Fleet where I was going to rip his ginger head off his shoulders Grrr Bloke wasn't even sorry he nearly wiped out a rider :(

Think you gave the twistygo a bit of a worry, all that power and theres your ol' lammy just eating the speedo ^^
IaninDorset
 
Posts: 129
Joined: Wed Aug 13, 2014 1:19 am
Location: Gillingham - Dorset

Re: Fully synthetic oil versus semi synthetic oil

Postby jonoy » Mon Aug 25, 2014 9:09 pm

what colour is rock oil groundsman
jonoy
 
Posts: 139
Joined: Sat May 31, 2014 6:35 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby Eden » Mon Aug 25, 2014 9:12 pm

red
User avatar
Eden
 
Posts: 986
Joined: Fri May 30, 2014 9:57 am
Location: ILCLAND

Re: Fully synthetic oil versus semi synthetic oil

Postby sunrisemac » Mon Aug 25, 2014 9:55 pm

Watching your video, I'm sold on the idea of Groundsman
User avatar
sunrisemac
 
Posts: 344
Joined: Sun Jun 01, 2014 8:05 pm
Location: Dear Old Sussex by the Sea

Re: Fully synthetic oil versus semi synthetic oil

Postby jonoy » Mon Aug 25, 2014 9:59 pm

Eden wrote:red


thanks
jonoy
 
Posts: 139
Joined: Sat May 31, 2014 6:35 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby jonoy » Wed Aug 27, 2014 11:02 am

where do you order your groundsman from ?
jonoy
 
Posts: 139
Joined: Sat May 31, 2014 6:35 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby Eden » Wed Aug 27, 2014 1:10 pm

Search for tines rock oil on google
User avatar
Eden
 
Posts: 986
Joined: Fri May 30, 2014 9:57 am
Location: ILCLAND

Re: Fully synthetic oil versus semi synthetic oil

Postby jonoy » Wed Aug 27, 2014 1:23 pm

thanks

looks like 2 is it the semi synthetic
jonoy
 
Posts: 139
Joined: Sat May 31, 2014 6:35 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby coaster » Wed Aug 27, 2014 2:12 pm

Yes, semi synth
User avatar
coaster
 
Posts: 2480
Joined: Fri May 30, 2014 1:00 pm
Location: Norfolk, Flying 8 Balls

Re: Fully synthetic oil versus semi synthetic oil

Postby jonoy » Wed Aug 27, 2014 2:35 pm

thanks
jonoy
 
Posts: 139
Joined: Sat May 31, 2014 6:35 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby collector1967 » Fri Aug 29, 2014 9:22 am

My god just seen 5lts for £12.21 + vat, i paid £13.75 for 1 ltr of Castrol power 1, i will be changing to groundsman.

Cheers Ian :D ;)
collector1967
 
Posts: 20
Joined: Mon Jun 02, 2014 12:52 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby collector1967 » Fri Aug 29, 2014 9:59 am

Just ordered 5 ltrs ,£24.00 all in, well pleased :D
collector1967
 
Posts: 20
Joined: Mon Jun 02, 2014 12:52 pm

Re: Fully synthetic oil versus semi synthetic oil

Postby Eden » Fri Aug 29, 2014 10:11 am

I order it in 30 litre lots as it works out even cheaper due to postage being the same no matter how much you order.
used 36 litres this year already so i wish i had ordered 60 litres back in january.
User avatar
Eden
 
Posts: 986
Joined: Fri May 30, 2014 9:57 am
Location: ILCLAND

Re: Fully synthetic oil versus semi synthetic oil

Postby Rich Oswald » Fri Aug 29, 2014 12:30 pm

collector1967 wrote:Just ordered 5 ltrs ,£24.00 all in, well pleased :D


That's gone up a bit from £12 + vat?
User avatar
Rich Oswald
 
Posts: 6718
Joined: Fri May 30, 2014 3:30 pm
Location: Wiseman From The East (East Of The Pennines That Is)

Re: Fully synthetic oil versus semi synthetic oil

Postby collector1967 » Fri Aug 29, 2014 2:29 pm

Bloody postage £8.00, still a good price i think :D
collector1967
 
Posts: 20
Joined: Mon Jun 02, 2014 12:52 pm

Next

Return to Series 1, 2 & 3

Who is online

Users browsing this forum: Majestic-12 [Bot] and 11 guests